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Finding the Fourth Proportional to 96,654.66, 133,390.11 and 54,215.94

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Solution

The fourth proportional to 96,654.66, 133,390.11 and 54,215.94 is: 74,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,654.66 : 133,390.11 = 54,215.94 : x
  2. Step 2: Convert to fraction form
    96,654.66/133,390.11 = 54,215.94/x
  3. Step 3: Cross multiply
    96,654.66x = 133,390.11 × 54,215.94
  4. Step 4: Simplify right side
    96,654.66x = 7,231,870,200.35
  5. Step 5: Solve for x
    x = 7,231,870,200.35/96,654.66
  6. Step 6: Final answer
    x = 74,821.74

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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.