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Finding the Fourth Proportional to 244,369.60, 366,287.10 and 86,516.80

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Solution

The fourth proportional to 244,369.60, 366,287.10 and 86,516.80 is: 129,680.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,369.60 : 366,287.10 = 86,516.80 : x
  2. Step 2: Convert to fraction form
    244,369.60/366,287.10 = 86,516.80/x
  3. Step 3: Cross multiply
    244,369.60x = 366,287.10 × 86,516.80
  4. Step 4: Simplify right side
    244,369.60x = 31,689,987,773.28
  5. Step 5: Solve for x
    x = 31,689,987,773.28/244,369.60
  6. Step 6: Final answer
    x = 129,680.56

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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.