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Finding the Fourth Proportional to 95,198.72, 142,531.84 and 71,751.68

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Solution

The fourth proportional to 95,198.72, 142,531.84 and 71,751.68 is: 107,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,198.72 : 142,531.84 = 71,751.68 : x
  2. Step 2: Convert to fraction form
    95,198.72/142,531.84 = 71,751.68/x
  3. Step 3: Cross multiply
    95,198.72x = 142,531.84 × 71,751.68
  4. Step 4: Simplify right side
    95,198.72x = 10,226,898,973.49
  5. Step 5: Solve for x
    x = 10,226,898,973.49/95,198.72
  6. Step 6: Final answer
    x = 107,426.85

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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.