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Finding the Fourth Proportional to 95,111.52, 142,691 and 28,552.88

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Solution

The fourth proportional to 95,111.52, 142,691 and 28,552.88 is: 42,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,111.52 : 142,691 = 28,552.88 : x
  2. Step 2: Convert to fraction form
    95,111.52/142,691 = 28,552.88/x
  3. Step 3: Cross multiply
    95,111.52x = 142,691 × 28,552.88
  4. Step 4: Simplify right side
    95,111.52x = 4,074,239,000.08
  5. Step 5: Solve for x
    x = 4,074,239,000.08/95,111.52
  6. Step 6: Final answer
    x = 42,836.44

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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.