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Finding the Fourth Proportional to 91,879.97, 137,635.43 and 41,891.30

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Solution

The fourth proportional to 91,879.97, 137,635.43 and 41,891.30 is: 62,752.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,879.97 : 137,635.43 = 41,891.30 : x
  2. Step 2: Convert to fraction form
    91,879.97/137,635.43 = 41,891.30/x
  3. Step 3: Cross multiply
    91,879.97x = 137,635.43 × 41,891.30
  4. Step 4: Simplify right side
    91,879.97x = 5,765,726,879.30
  5. Step 5: Solve for x
    x = 5,765,726,879.30/91,879.97
  6. Step 6: Final answer
    x = 62,752.82

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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.