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Finding the Fourth Proportional to 89,489.76, 123,493.49 and 48,652.59

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Solution

The fourth proportional to 89,489.76, 123,493.49 and 48,652.59 is: 67,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,489.76 : 123,493.49 = 48,652.59 : x
  2. Step 2: Convert to fraction form
    89,489.76/123,493.49 = 48,652.59/x
  3. Step 3: Cross multiply
    89,489.76x = 123,493.49 × 48,652.59
  4. Step 4: Simplify right side
    89,489.76x = 6,008,278,812.59
  5. Step 5: Solve for x
    x = 6,008,278,812.59/89,489.76
  6. Step 6: Final answer
    x = 67,139.29

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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.