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Finding the Fourth Proportional to 95,432.67, 143,148.96 and 28,871.28

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Solution

The fourth proportional to 95,432.67, 143,148.96 and 28,871.28 is: 43,306.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,432.67 : 143,148.96 = 28,871.28 : x
  2. Step 2: Convert to fraction form
    95,432.67/143,148.96 = 28,871.28/x
  3. Step 3: Cross multiply
    95,432.67x = 143,148.96 × 28,871.28
  4. Step 4: Simplify right side
    95,432.67x = 4,132,893,705.87
  5. Step 5: Solve for x
    x = 4,132,893,705.87/95,432.67
  6. Step 6: Final answer
    x = 43,306.91

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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.