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Finding the Fourth Proportional to 168,468.39, 232,491.17 and 91,992.35

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Solution

The fourth proportional to 168,468.39, 232,491.17 and 91,992.35 is: 126,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,468.39 : 232,491.17 = 91,992.35 : x
  2. Step 2: Convert to fraction form
    168,468.39/232,491.17 = 91,992.35/x
  3. Step 3: Cross multiply
    168,468.39x = 232,491.17 × 91,992.35
  4. Step 4: Simplify right side
    168,468.39x = 21,387,407,460.13
  5. Step 5: Solve for x
    x = 21,387,407,460.13/168,468.39
  6. Step 6: Final answer
    x = 126,952.05

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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.