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Finding the Fourth Proportional to 89,163.52, 133,713.42 and 41,770.54

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Solution

The fourth proportional to 89,163.52, 133,713.42 and 41,770.54 is: 62,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,163.52 : 133,713.42 = 41,770.54 : x
  2. Step 2: Convert to fraction form
    89,163.52/133,713.42 = 41,770.54/x
  3. Step 3: Cross multiply
    89,163.52x = 133,713.42 × 41,770.54
  4. Step 4: Simplify right side
    89,163.52x = 5,585,281,758.65
  5. Step 5: Solve for x
    x = 5,585,281,758.65/89,163.52
  6. Step 6: Final answer
    x = 62,640.88

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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.