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Finding the Fourth Proportional to 123,732.82, 170,754.60 and 67,144.24

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Solution

The fourth proportional to 123,732.82, 170,754.60 and 67,144.24 is: 92,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,732.82 : 170,754.60 = 67,144.24 : x
  2. Step 2: Convert to fraction form
    123,732.82/170,754.60 = 67,144.24/x
  3. Step 3: Cross multiply
    123,732.82x = 170,754.60 × 67,144.24
  4. Step 4: Simplify right side
    123,732.82x = 11,465,187,843.50
  5. Step 5: Solve for x
    x = 11,465,187,843.50/123,732.82
  6. Step 6: Final answer
    x = 92,660.85

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1.5x scale

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.