No saying anyone would do this, since I think the dollars days are numbered, but an interesting mathematical exercise.

Of course, this number assumes no overheads in the transactions etc. so would be less, but still.

Start: $100,000

$1 = 83.59R

$100,000 = 8,359,000R

Fixed price for Gold in Rubles = 5000/g

8,359,000/5000 = 1,671.8g of Gold

Spot price for gold $62.52/g

1671.8g * $62.52 = $104,520.94

That's a 4.52% gain.