What equal series of payments must be paid into a sinking fund to accumulate the following amount? $45,000 in 10 years at 7.45% compounded semiannually when payments are semiannual. $25,000 in 15 years at 6.35% compounded quarterly when payments are quarterly. $ 12,000 in five years at 9.25% compounded monthly when payments are monthly. The required semiannual payment amount should be $ (Round to the nearest dollar.) The required quarterly payment amount should be (Round to the nearest dollar.) The required monthly payment amount should be $ (Round to the nearest dollar.)