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Finding the Fourth Proportional to 89,392.55, 133,974.81 and 41,902.88

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Solution

The fourth proportional to 89,392.55, 133,974.81 and 41,902.88 is: 62,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,392.55 : 133,974.81 = 41,902.88 : x
  2. Step 2: Convert to fraction form
    89,392.55/133,974.81 = 41,902.88/x
  3. Step 3: Cross multiply
    89,392.55x = 133,974.81 × 41,902.88
  4. Step 4: Simplify right side
    89,392.55x = 5,613,929,716.58
  5. Step 5: Solve for x
    x = 5,613,929,716.58/89,392.55
  6. Step 6: Final answer
    x = 62,800.87

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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.