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Finding the Fourth Proportional to 168,122.55, 232,002.14 and 91,639.97

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Solution

The fourth proportional to 168,122.55, 232,002.14 and 91,639.97 is: 126,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,122.55 : 232,002.14 = 91,639.97 : x
  2. Step 2: Convert to fraction form
    168,122.55/232,002.14 = 91,639.97/x
  3. Step 3: Cross multiply
    168,122.55x = 232,002.14 × 91,639.97
  4. Step 4: Simplify right side
    168,122.55x = 21,260,667,531.33
  5. Step 5: Solve for x
    x = 21,260,667,531.33/168,122.55
  6. Step 6: Final answer
    x = 126,459.34

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1.5x scale

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.