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Finding the Fourth Proportional to 54,306.54, 74,890.53 and 38,168.64

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Solution

The fourth proportional to 54,306.54, 74,890.53 and 38,168.64 is: 52,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.54 : 74,890.53 = 38,168.64 : x
  2. Step 2: Convert to fraction form
    54,306.54/74,890.53 = 38,168.64/x
  3. Step 3: Cross multiply
    54,306.54x = 74,890.53 × 38,168.64
  4. Step 4: Simplify right side
    54,306.54x = 2,858,469,678.98
  5. Step 5: Solve for x
    x = 2,858,469,678.98/54,306.54
  6. Step 6: Final answer
    x = 52,635.83

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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.