Assume the current U.S. dollar-yen spot rate is 90 ¥/$. Further, the current nominal 180-day rate of return in Japan is 1% (annualized) and 2% (annualized) in the United States. What is the approximate forward exchange rate for 180 days? ¥89.55/$ ¥89.12/$ ¥90.89/$ ¥90.45/$