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Finding the Fourth Proportional to 426,593.62, 639,892.18 and 106,744.61

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Solution

The fourth proportional to 426,593.62, 639,892.18 and 106,744.61 is: 160,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,593.62 : 639,892.18 = 106,744.61 : x
  2. Step 2: Convert to fraction form
    426,593.62/639,892.18 = 106,744.61/x
  3. Step 3: Cross multiply
    426,593.62x = 639,892.18 × 106,744.61
  4. Step 4: Simplify right side
    426,593.62x = 68,305,042,929.31
  5. Step 5: Solve for x
    x = 68,305,042,929.31/426,593.62
  6. Step 6: Final answer
    x = 160,117.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.