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Finding the Fourth Proportional to 84,490.88, 126,737.28 and 22,167.68

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Solution

The fourth proportional to 84,490.88, 126,737.28 and 22,167.68 is: 33,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,490.88 : 126,737.28 = 22,167.68 : x
  2. Step 2: Convert to fraction form
    84,490.88/126,737.28 = 22,167.68/x
  3. Step 3: Cross multiply
    84,490.88x = 126,737.28 × 22,167.68
  4. Step 4: Simplify right side
    84,490.88x = 2,809,471,467.11
  5. Step 5: Solve for x
    x = 2,809,471,467.11/84,490.88
  6. Step 6: Final answer
    x = 33,251.77

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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.