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Finding the Fourth Proportional to 168,031.71, 231,882.46 and 91,550.56

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Solution

The fourth proportional to 168,031.71, 231,882.46 and 91,550.56 is: 126,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,031.71 : 231,882.46 = 91,550.56 : x
  2. Step 2: Convert to fraction form
    168,031.71/231,882.46 = 91,550.56/x
  3. Step 3: Cross multiply
    168,031.71x = 231,882.46 × 91,550.56
  4. Step 4: Simplify right side
    168,031.71x = 21,228,969,067.18
  5. Step 5: Solve for x
    x = 21,228,969,067.18/168,031.71
  6. Step 6: Final answer
    x = 126,339.06

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1.5x scale

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.