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Finding the Fourth Proportional to 96,147.79, 132,640.85 and 55,839.71

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Solution

The fourth proportional to 96,147.79, 132,640.85 and 55,839.71 is: 77,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,147.79 : 132,640.85 = 55,839.71 : x
  2. Step 2: Convert to fraction form
    96,147.79/132,640.85 = 55,839.71/x
  3. Step 3: Cross multiply
    96,147.79x = 132,640.85 × 55,839.71
  4. Step 4: Simplify right side
    96,147.79x = 7,406,627,069.35
  5. Step 5: Solve for x
    x = 7,406,627,069.35/96,147.79
  6. Step 6: Final answer
    x = 77,033.78

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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.