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Finding the Fourth Proportional to 69,382.31, 95,747.88 and 39,167.99

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Solution

The fourth proportional to 69,382.31, 95,747.88 and 39,167.99 is: 54,051.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,382.31 : 95,747.88 = 39,167.99 : x
  2. Step 2: Convert to fraction form
    69,382.31/95,747.88 = 39,167.99/x
  3. Step 3: Cross multiply
    69,382.31x = 95,747.88 × 39,167.99
  4. Step 4: Simplify right side
    69,382.31x = 3,750,251,527.62
  5. Step 5: Solve for x
    x = 3,750,251,527.62/69,382.31
  6. Step 6: Final answer
    x = 54,051.99

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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.