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Finding the Fourth Proportional to 123,732.73, 170,751.63 and 67,144.11

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Solution

The fourth proportional to 123,732.73, 170,751.63 and 67,144.11 is: 92,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,732.73 : 170,751.63 = 67,144.11 : x
  2. Step 2: Convert to fraction form
    123,732.73/170,751.63 = 67,144.11/x
  3. Step 3: Cross multiply
    123,732.73x = 170,751.63 × 67,144.11
  4. Step 4: Simplify right side
    123,732.73x = 11,464,966,227.40
  5. Step 5: Solve for x
    x = 11,464,966,227.40/123,732.73
  6. Step 6: Final answer
    x = 92,659.12

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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.