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Finding the Fourth Proportional to 91,694.41, 126,422.00 and 65,531.66

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Solution

The fourth proportional to 91,694.41, 126,422.00 and 65,531.66 is: 90,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,694.41 : 126,422.00 = 65,531.66 : x
  2. Step 2: Convert to fraction form
    91,694.41/126,422.00 = 65,531.66/x
  3. Step 3: Cross multiply
    91,694.41x = 126,422.00 × 65,531.66
  4. Step 4: Simplify right side
    91,694.41x = 8,284,644,000.40
  5. Step 5: Solve for x
    x = 8,284,644,000.40/91,694.41
  6. Step 6: Final answer
    x = 90,350.59

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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.