Determine the present value of $180,000 to be received at the end of each of four years, using an interest rate of 5.5%, compounded annually, as follows:

a. By successive computations, using the present value of $1 table in Exhibit 5. Round to the nearest whole dollar.

First year	$fill in the blank 1
Second Year	fill in the blank 2
Third Year	fill in the blank 3
Fourth Year	fill in the blank 4
Total present value

b. By using the present value of an annuity of $1 table in Exhibit 7. Round to the nearest whole dollar. $fill in the blank 6

c. Why is the present value of the four $180,000 cash receipts less than the $720,000 to be received in the future?