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Finding the Fourth Proportional to 168,057.57, 231,919.48 and 91,576.68

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Solution

The fourth proportional to 168,057.57, 231,919.48 and 91,576.68 is: 126,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.57 : 231,919.48 = 91,576.68 : x
  2. Step 2: Convert to fraction form
    168,057.57/231,919.48 = 91,576.68/x
  3. Step 3: Cross multiply
    168,057.57x = 231,919.48 × 91,576.68
  4. Step 4: Simplify right side
    168,057.57x = 21,238,416,005.73
  5. Step 5: Solve for x
    x = 21,238,416,005.73/168,057.57
  6. Step 6: Final answer
    x = 126,375.84

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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.