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Finding the Fourth Proportional to 442,753.20, 664,000.20 and 158,410.80

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Solution

The fourth proportional to 442,753.20, 664,000.20 and 158,410.80 is: 237,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,753.20 : 664,000.20 = 158,410.80 : x
  2. Step 2: Convert to fraction form
    442,753.20/664,000.20 = 158,410.80/x
  3. Step 3: Cross multiply
    442,753.20x = 664,000.20 × 158,410.80
  4. Step 4: Simplify right side
    442,753.20x = 105,184,802,882.16
  5. Step 5: Solve for x
    x = 105,184,802,882.16/442,753.20
  6. Step 6: Final answer
    x = 237,569.83

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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.