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Finding the Fourth Proportional to 169,711.67, 234,190.85 and 93,215.88

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Solution

The fourth proportional to 169,711.67, 234,190.85 and 93,215.88 is: 128,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,711.67 : 234,190.85 = 93,215.88 : x
  2. Step 2: Convert to fraction form
    169,711.67/234,190.85 = 93,215.88/x
  3. Step 3: Cross multiply
    169,711.67x = 234,190.85 × 93,215.88
  4. Step 4: Simplify right side
    169,711.67x = 21,830,305,704.62
  5. Step 5: Solve for x
    x = 21,830,305,704.62/169,711.67
  6. Step 6: Final answer
    x = 128,631.73

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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.