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Finding the Fourth Proportional to 123,856.29, 185,726.93 and 60,679.53

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Solution

The fourth proportional to 123,856.29, 185,726.93 and 60,679.53 is: 90,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,856.29 : 185,726.93 = 60,679.53 : x
  2. Step 2: Convert to fraction form
    123,856.29/185,726.93 = 60,679.53/x
  3. Step 3: Cross multiply
    123,856.29x = 185,726.93 × 60,679.53
  4. Step 4: Simplify right side
    123,856.29x = 11,269,822,517.35
  5. Step 5: Solve for x
    x = 11,269,822,517.35/123,856.29
  6. Step 6: Final answer
    x = 90,991.12

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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.