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Finding the Fourth Proportional to 86,672.43, 119,610.68 and 48,949.11

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Solution

The fourth proportional to 86,672.43, 119,610.68 and 48,949.11 is: 67,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,672.43 : 119,610.68 = 48,949.11 : x
  2. Step 2: Convert to fraction form
    86,672.43/119,610.68 = 48,949.11/x
  3. Step 3: Cross multiply
    86,672.43x = 119,610.68 × 48,949.11
  4. Step 4: Simplify right side
    86,672.43x = 5,854,836,087.75
  5. Step 5: Solve for x
    x = 5,854,836,087.75/86,672.43
  6. Step 6: Final answer
    x = 67,551.31

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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.