Mikhail Khodorkovsky was one of the infamous Russian oligarchs, accumulating billions of dollars in wealth in the mid-1990s with the fall of the Soviet Union. But in 2003 he had been imprisoned by the Russian state for a decade. Upon his release from prison in 2013, he had taken up residence in

Switzerlandwith

his money. In November2014, Mikhail held a portfolio of

USD210

million and

CHF162

million in Swiss banks, in addition to accounts in Russia still holding

RUB1.5

billion. Using the exchange rate table

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, answer the following:

a. What is the value of Mikhail's portfolio measured in Russian rubles?

b. What is the value of Mikhail's portfolio measured in Swiss francs?

c. What is the value of Mikhail's portfolio measured in U.S. dollars?

d. Which currency demonstrated the greatest fluctuations in total value over the six dates?

Exchange Rates

Exchange Rates	Nov. 7, 2013	Nov. 7, 2014	Dec. 4, 2014	Dec. 16, 2014	Dec. 24,2021	Jan.16,2015
Russian Rubles per Swiss franc	35.285	48.258	56.247	70.288	55.367	76.637
Russian Rubles per U.S. dollar	32.407	46.731	54.418	67.505	54.616	65.068
U.S. dollars per Swiss franc	1.088	1.0327	1.0336	1.0412	1.0138	1.1778