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Finding the Fourth Proportional to 123,661.52, 185,544.12 and 40,563.92

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Solution

The fourth proportional to 123,661.52, 185,544.12 and 40,563.92 is: 60,862.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,661.52 : 185,544.12 = 40,563.92 : x
  2. Step 2: Convert to fraction form
    123,661.52/185,544.12 = 40,563.92/x
  3. Step 3: Cross multiply
    123,661.52x = 185,544.12 × 40,563.92
  4. Step 4: Simplify right side
    123,661.52x = 7,526,396,840.15
  5. Step 5: Solve for x
    x = 7,526,396,840.15/123,661.52
  6. Step 6: Final answer
    x = 60,862.88

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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.