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Finding the Fourth Proportional to 417,892.10, 626,604.87 and 137,385.86

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Solution

The fourth proportional to 417,892.10, 626,604.87 and 137,385.86 is: 206,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,892.10 : 626,604.87 = 137,385.86 : x
  2. Step 2: Convert to fraction form
    417,892.10/626,604.87 = 137,385.86/x
  3. Step 3: Cross multiply
    417,892.10x = 626,604.87 × 137,385.86
  4. Step 4: Simplify right side
    417,892.10x = 86,086,648,945.14
  5. Step 5: Solve for x
    x = 86,086,648,945.14/417,892.10
  6. Step 6: Final answer
    x = 206,002.10

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