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Finding the Fourth Proportional to 96,691.53, 133,432.22 and 53,668.49

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Solution

The fourth proportional to 96,691.53, 133,432.22 and 53,668.49 is: 74,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,691.53 : 133,432.22 = 53,668.49 : x
  2. Step 2: Convert to fraction form
    96,691.53/133,432.22 = 53,668.49/x
  3. Step 3: Cross multiply
    96,691.53x = 133,432.22 × 53,668.49
  4. Step 4: Simplify right side
    96,691.53x = 7,161,105,496.41
  5. Step 5: Solve for x
    x = 7,161,105,496.41/96,691.53
  6. Step 6: Final answer
    x = 74,061.35

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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.