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Finding the Fourth Proportional to 192,918.62, 266,229.56 and 106,879.43

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Solution

The fourth proportional to 192,918.62, 266,229.56 and 106,879.43 is: 147,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,918.62 : 266,229.56 = 106,879.43 : x
  2. Step 2: Convert to fraction form
    192,918.62/266,229.56 = 106,879.43/x
  3. Step 3: Cross multiply
    192,918.62x = 266,229.56 × 106,879.43
  4. Step 4: Simplify right side
    192,918.62x = 28,454,463,505.35
  5. Step 5: Solve for x
    x = 28,454,463,505.35/192,918.62
  6. Step 6: Final answer
    x = 147,494.65

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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.