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Finding the Fourth Proportional to 270,091.64, 372,729.33 and 149,229.92

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Solution

The fourth proportional to 270,091.64, 372,729.33 and 149,229.92 is: 205,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,091.64 : 372,729.33 = 149,229.92 : x
  2. Step 2: Convert to fraction form
    270,091.64/372,729.33 = 149,229.92/x
  3. Step 3: Cross multiply
    270,091.64x = 372,729.33 × 149,229.92
  4. Step 4: Simplify right side
    270,091.64x = 55,622,367,351.40
  5. Step 5: Solve for x
    x = 55,622,367,351.40/270,091.64
  6. Step 6: Final answer
    x = 205,938.87

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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.