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Finding the Fourth Proportional to 168,080.52, 231,951.16 and 91,599.64

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Solution

The fourth proportional to 168,080.52, 231,951.16 and 91,599.64 is: 126,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,080.52 : 231,951.16 = 91,599.64 : x
  2. Step 2: Convert to fraction form
    168,080.52/231,951.16 = 91,599.64/x
  3. Step 3: Cross multiply
    168,080.52x = 231,951.16 × 91,599.64
  4. Step 4: Simplify right side
    168,080.52x = 21,246,642,753.58
  5. Step 5: Solve for x
    x = 21,246,642,753.58/168,080.52
  6. Step 6: Final answer
    x = 126,407.53

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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.