An unavoidable cost may be met by outlays of $90,000 now and $4,500 at the end of every six months for three years (Alternative 1) or by making monthly payments of $1,970 for seven years (Alternative 2). Interest is 12% compounded annually. Compute the present value of each alternative and determine the preferred alternative according to the discounted cash flow criterion The present value of Alternative 1 is $ (Round the final answer to the nearest dollar as needed. Round all intermediate values to six decimal places as needed.) The present value of Alternative 2 is $| (Round the final answer to the nearest dollar as needed. Round all intermediate values to six decimal places as needed.) The preferred alternative is