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Finding the Fourth Proportional to 168,080.88, 231,951.65 and 91,599.99

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Solution

The fourth proportional to 168,080.88, 231,951.65 and 91,599.99 is: 126,408.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,080.88 : 231,951.65 = 91,599.99 : x
  2. Step 2: Convert to fraction form
    168,080.88/231,951.65 = 91,599.99/x
  3. Step 3: Cross multiply
    168,080.88x = 231,951.65 × 91,599.99
  4. Step 4: Simplify right side
    168,080.88x = 21,246,769,400.36
  5. Step 5: Solve for x
    x = 21,246,769,400.36/168,080.88
  6. Step 6: Final answer
    x = 126,408.01

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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.