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Finding the Fourth Proportional to 228,691.28, 343,036.92 and 104,067.92

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Solution

The fourth proportional to 228,691.28, 343,036.92 and 104,067.92 is: 156,101.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,691.28 : 343,036.92 = 104,067.92 : x
  2. Step 2: Convert to fraction form
    228,691.28/343,036.92 = 104,067.92/x
  3. Step 3: Cross multiply
    228,691.28x = 343,036.92 × 104,067.92
  4. Step 4: Simplify right side
    228,691.28x = 35,699,138,747.61
  5. Step 5: Solve for x
    x = 35,699,138,747.61/228,691.28
  6. Step 6: Final answer
    x = 156,101.88

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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.