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Finding the Fourth Proportional to 126,166.71, 174,107.87 and 68,806.47

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Solution

The fourth proportional to 126,166.71, 174,107.87 and 68,806.47 is: 94,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,166.71 : 174,107.87 = 68,806.47 : x
  2. Step 2: Convert to fraction form
    126,166.71/174,107.87 = 68,806.47/x
  3. Step 3: Cross multiply
    126,166.71x = 174,107.87 × 68,806.47
  4. Step 4: Simplify right side
    126,166.71x = 11,979,747,589.89
  5. Step 5: Solve for x
    x = 11,979,747,589.89/126,166.71
  6. Step 6: Final answer
    x = 94,951.73

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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.