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Finding the Fourth Proportional to 392,348.52, 588,384.42 and 126,019.08

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Solution

The fourth proportional to 392,348.52, 588,384.42 and 126,019.08 is: 188,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,348.52 : 588,384.42 = 126,019.08 : x
  2. Step 2: Convert to fraction form
    392,348.52/588,384.42 = 126,019.08/x
  3. Step 3: Cross multiply
    392,348.52x = 588,384.42 × 126,019.08
  4. Step 4: Simplify right side
    392,348.52x = 74,147,663,294.73
  5. Step 5: Solve for x
    x = 74,147,663,294.73/392,348.52
  6. Step 6: Final answer
    x = 188,984.18

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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.