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Finding the Fourth Proportional to 126,061.38, 173,963.77 and 69,472.76

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Solution

The fourth proportional to 126,061.38, 173,963.77 and 69,472.76 is: 95,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,061.38 : 173,963.77 = 69,472.76 : x
  2. Step 2: Convert to fraction form
    126,061.38/173,963.77 = 69,472.76/x
  3. Step 3: Cross multiply
    126,061.38x = 173,963.77 × 69,472.76
  4. Step 4: Simplify right side
    126,061.38x = 12,085,742,198.40
  5. Step 5: Solve for x
    x = 12,085,742,198.40/126,061.38
  6. Step 6: Final answer
    x = 95,871.89

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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.