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Finding the Fourth Proportional to 392,250.60, 588,463.92 and 126,026.28

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Solution

The fourth proportional to 392,250.60, 588,463.92 and 126,026.28 is: 189,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,250.60 : 588,463.92 = 126,026.28 : x
  2. Step 2: Convert to fraction form
    392,250.60/588,463.92 = 126,026.28/x
  3. Step 3: Cross multiply
    392,250.60x = 588,463.92 × 126,026.28
  4. Step 4: Simplify right side
    392,250.60x = 74,161,918,751.82
  5. Step 5: Solve for x
    x = 74,161,918,751.82/392,250.60
  6. Step 6: Final answer
    x = 189,067.70

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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.