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Finding the Fourth Proportional to 84,500.80, 126,744.60 and 22,169.68

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Solution

The fourth proportional to 84,500.80, 126,744.60 and 22,169.68 is: 33,252.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,500.80 : 126,744.60 = 22,169.68 : x
  2. Step 2: Convert to fraction form
    84,500.80/126,744.60 = 22,169.68/x
  3. Step 3: Cross multiply
    84,500.80x = 126,744.60 × 22,169.68
  4. Step 4: Simplify right side
    84,500.80x = 2,809,887,223.73
  5. Step 5: Solve for x
    x = 2,809,887,223.73/84,500.80
  6. Step 6: Final answer
    x = 33,252.79

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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.