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Finding the Fourth Proportional to 168,287.32, 252,387.78 and 49,930.66

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Solution

The fourth proportional to 168,287.32, 252,387.78 and 49,930.66 is: 74,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,287.32 : 252,387.78 = 49,930.66 : x
  2. Step 2: Convert to fraction form
    168,287.32/252,387.78 = 49,930.66/x
  3. Step 3: Cross multiply
    168,287.32x = 252,387.78 × 49,930.66
  4. Step 4: Simplify right side
    168,287.32x = 12,601,888,431.33
  5. Step 5: Solve for x
    x = 12,601,888,431.33/168,287.32
  6. Step 6: Final answer
    x = 74,883.17

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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.