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Finding the Fourth Proportional to 168,016.76, 231,863.70 and 92,565.08

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Solution

The fourth proportional to 168,016.76, 231,863.70 and 92,565.08 is: 127,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,016.76 : 231,863.70 = 92,565.08 : x
  2. Step 2: Convert to fraction form
    168,016.76/231,863.70 = 92,565.08/x
  3. Step 3: Cross multiply
    168,016.76x = 231,863.70 × 92,565.08
  4. Step 4: Simplify right side
    168,016.76x = 21,462,481,939.60
  5. Step 5: Solve for x
    x = 21,462,481,939.60/168,016.76
  6. Step 6: Final answer
    x = 127,740.13

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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.