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Finding the Fourth Proportional to 168,080.70, 231,948.26 and 91,600.42

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Solution

The fourth proportional to 168,080.70, 231,948.26 and 91,600.42 is: 126,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,080.70 : 231,948.26 = 91,600.42 : x
  2. Step 2: Convert to fraction form
    168,080.70/231,948.26 = 91,600.42/x
  3. Step 3: Cross multiply
    168,080.70x = 231,948.26 × 91,600.42
  4. Step 4: Simplify right side
    168,080.70x = 21,246,558,034.27
  5. Step 5: Solve for x
    x = 21,246,558,034.27/168,080.70
  6. Step 6: Final answer
    x = 126,406.89

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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.