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Finding the Fourth Proportional to 123,082.35, 169,853.60 and 66,493.73

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Solution

The fourth proportional to 123,082.35, 169,853.60 and 66,493.73 is: 91,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,082.35 : 169,853.60 = 66,493.73 : x
  2. Step 2: Convert to fraction form
    123,082.35/169,853.60 = 66,493.73/x
  3. Step 3: Cross multiply
    123,082.35x = 169,853.60 × 66,493.73
  4. Step 4: Simplify right side
    123,082.35x = 11,294,198,236.19
  5. Step 5: Solve for x
    x = 11,294,198,236.19/123,082.35
  6. Step 6: Final answer
    x = 91,761.31

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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.