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Finding the Fourth Proportional to 83,878.60, 125,813.82 and 31,284.04

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Solution

The fourth proportional to 83,878.60, 125,813.82 and 31,284.04 is: 46,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,878.60 : 125,813.82 = 31,284.04 : x
  2. Step 2: Convert to fraction form
    83,878.60/125,813.82 = 31,284.04/x
  3. Step 3: Cross multiply
    83,878.60x = 125,813.82 × 31,284.04
  4. Step 4: Simplify right side
    83,878.60x = 3,935,964,577.43
  5. Step 5: Solve for x
    x = 3,935,964,577.43/83,878.60
  6. Step 6: Final answer
    x = 46,924.54

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