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Finding the Fourth Proportional to 69,456.38, 95,849.07 and 39,243.11

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Solution

The fourth proportional to 69,456.38, 95,849.07 and 39,243.11 is: 54,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,456.38 : 95,849.07 = 39,243.11 : x
  2. Step 2: Convert to fraction form
    69,456.38/95,849.07 = 39,243.11/x
  3. Step 3: Cross multiply
    69,456.38x = 95,849.07 × 39,243.11
  4. Step 4: Simplify right side
    69,456.38x = 3,761,415,597.41
  5. Step 5: Solve for x
    x = 3,761,415,597.41/69,456.38
  6. Step 6: Final answer
    x = 54,155.08

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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.