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Finding the Fourth Proportional to 379,061.48, 568,553.17 and 126,314.64

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Solution

The fourth proportional to 379,061.48, 568,553.17 and 126,314.64 is: 189,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,061.48 : 568,553.17 = 126,314.64 : x
  2. Step 2: Convert to fraction form
    379,061.48/568,553.17 = 126,314.64/x
  3. Step 3: Cross multiply
    379,061.48x = 568,553.17 × 126,314.64
  4. Step 4: Simplify right side
    379,061.48x = 71,816,588,989.41
  5. Step 5: Solve for x
    x = 71,816,588,989.41/379,061.48
  6. Step 6: Final answer
    x = 189,458.95

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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.