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Finding the Fourth Proportional to 260,918.08, 391,380.72 and 73,929.40

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Solution

The fourth proportional to 260,918.08, 391,380.72 and 73,929.40 is: 110,895.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,918.08 : 391,380.72 = 73,929.40 : x
  2. Step 2: Convert to fraction form
    260,918.08/391,380.72 = 73,929.40/x
  3. Step 3: Cross multiply
    260,918.08x = 391,380.72 × 73,929.40
  4. Step 4: Simplify right side
    260,918.08x = 28,934,541,801.17
  5. Step 5: Solve for x
    x = 28,934,541,801.17/260,918.08
  6. Step 6: Final answer
    x = 110,895.12

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