. Mary has a loan of $250,000 which has an annual effective interest rate of 5%. The loan (10) will be repaid with annual (end-of-year) payments for 15 years. The first payment is $10,000. The second payment is $10, 000(1.2). The third payment is $10, 000(1.2)2 . The fourth payment is $10, 000(1.2)3 . The fifth payment is $10, 000(1.2)4 . The payments at the end of the 6th through the 15th year are the same (that is, a level amount). Determine the outstanding loan balance right after the 4th payment.