Determine the missing amounts in each of the following four independent scenarios:

a. X Co. had a $4,500 beginning balance in accounts receivable on January 1, Year 4. During Year 4, the company earned $69,400 of revenue on account and collected $68,200 cash from accounts receivable. Based on this information alone, determine the amount of the ending balance in accounts receivable.

b. X Co. had a $3,400 ending balance in accounts receivable on December 31, Year 4. During Year 4, the company earned $62,200 of revenue on account and collected $63,100 cash from accounts receivable. Based on this information alone, determine the amount of the beginning balance in accounts receivable.

c. X Co. had a $9,700 beginning balance in accounts receivable on January 1, Year 4. During Year 4, the company earned $99,700 of revenue on account. The ending balance in accounts receivable was $10,300. Based on this information alone, determine the amount of cash collections from accounts receivable.

d. X Co. had a $22,000 beginning balance in accounts receivable on January 1, Year 4. During Year 4, the company collected $109,000 of revenue on account. The ending balance in accounts receivable was $21,300. Based on this information alone, determine the amount of cash collections from accounts receivable.