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Finding the Fourth Proportional to 126,469.84, 174,520.92 and 69,097.78

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Solution

The fourth proportional to 126,469.84, 174,520.92 and 69,097.78 is: 95,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,469.84 : 174,520.92 = 69,097.78 : x
  2. Step 2: Convert to fraction form
    126,469.84/174,520.92 = 69,097.78/x
  3. Step 3: Cross multiply
    126,469.84x = 174,520.92 × 69,097.78
  4. Step 4: Simplify right side
    126,469.84x = 12,059,008,135.56
  5. Step 5: Solve for x
    x = 12,059,008,135.56/126,469.84
  6. Step 6: Final answer
    x = 95,350.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.