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Finding the Fourth Proportional to 54,469.38, 81,645.99 and 31,045.38

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Solution

The fourth proportional to 54,469.38, 81,645.99 and 31,045.38 is: 46,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,469.38 : 81,645.99 = 31,045.38 : x
  2. Step 2: Convert to fraction form
    54,469.38/81,645.99 = 31,045.38/x
  3. Step 3: Cross multiply
    54,469.38x = 81,645.99 × 31,045.38
  4. Step 4: Simplify right side
    54,469.38x = 2,534,730,785.03
  5. Step 5: Solve for x
    x = 2,534,730,785.03/54,469.38
  6. Step 6: Final answer
    x = 46,534.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.