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Finding the Fourth Proportional to 242,363.43, 363,711.25 and 84,591.88

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Solution

The fourth proportional to 242,363.43, 363,711.25 and 84,591.88 is: 126,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,363.43 : 363,711.25 = 84,591.88 : x
  2. Step 2: Convert to fraction form
    242,363.43/363,711.25 = 84,591.88/x
  3. Step 3: Cross multiply
    242,363.43x = 363,711.25 × 84,591.88
  4. Step 4: Simplify right side
    242,363.43x = 30,767,018,414.65
  5. Step 5: Solve for x
    x = 30,767,018,414.65/242,363.43
  6. Step 6: Final answer
    x = 126,945.80

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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.