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Finding the Fourth Proportional to 96,755.92, 144,758.35 and 84,819.90

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Solution

The fourth proportional to 96,755.92, 144,758.35 and 84,819.90 is: 126,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,755.92 : 144,758.35 = 84,819.90 : x
  2. Step 2: Convert to fraction form
    96,755.92/144,758.35 = 84,819.90/x
  3. Step 3: Cross multiply
    96,755.92x = 144,758.35 × 84,819.90
  4. Step 4: Simplify right side
    96,755.92x = 12,278,388,197.22
  5. Step 5: Solve for x
    x = 12,278,388,197.22/96,755.92
  6. Step 6: Final answer
    x = 126,900.64

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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.