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Finding the Fourth Proportional to 123,726.96, 185,326.92 and 60,449.76

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Solution

The fourth proportional to 123,726.96, 185,326.92 and 60,449.76 is: 90,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,726.96 : 185,326.92 = 60,449.76 : x
  2. Step 2: Convert to fraction form
    123,726.96/185,326.92 = 60,449.76/x
  3. Step 3: Cross multiply
    123,726.96x = 185,326.92 × 60,449.76
  4. Step 4: Simplify right side
    123,726.96x = 11,202,967,835.54
  5. Step 5: Solve for x
    x = 11,202,967,835.54/123,726.96
  6. Step 6: Final answer
    x = 90,545.89

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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.