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Finding the Fourth Proportional to 126,062.52, 173,966.31 and 68,701.86

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Solution

The fourth proportional to 126,062.52, 173,966.31 and 68,701.86 is: 94,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,062.52 : 173,966.31 = 68,701.86 : x
  2. Step 2: Convert to fraction form
    126,062.52/173,966.31 = 68,701.86/x
  3. Step 3: Cross multiply
    126,062.52x = 173,966.31 × 68,701.86
  4. Step 4: Simplify right side
    126,062.52x = 11,951,807,861.00
  5. Step 5: Solve for x
    x = 11,951,807,861.00/126,062.52
  6. Step 6: Final answer
    x = 94,808.57

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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.