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Finding the Fourth Proportional to 168,416.62, 232,405.05 and 91,920.52

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Solution

The fourth proportional to 168,416.62, 232,405.05 and 91,920.52 is: 126,844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,416.62 : 232,405.05 = 91,920.52 : x
  2. Step 2: Convert to fraction form
    168,416.62/232,405.05 = 91,920.52/x
  3. Step 3: Cross multiply
    168,416.62x = 232,405.05 × 91,920.52
  4. Step 4: Simplify right side
    168,416.62x = 21,362,793,164.78
  5. Step 5: Solve for x
    x = 21,362,793,164.78/168,416.62
  6. Step 6: Final answer
    x = 126,844.92

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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.