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Finding the Fourth Proportional to 169,673.50, 254,397.92 and 80,940.70

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Solution

The fourth proportional to 169,673.50, 254,397.92 and 80,940.70 is: 121,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,673.50 : 254,397.92 = 80,940.70 : x
  2. Step 2: Convert to fraction form
    169,673.50/254,397.92 = 80,940.70/x
  3. Step 3: Cross multiply
    169,673.50x = 254,397.92 × 80,940.70
  4. Step 4: Simplify right side
    169,673.50x = 20,591,145,723.34
  5. Step 5: Solve for x
    x = 20,591,145,723.34/169,673.50
  6. Step 6: Final answer
    x = 121,357.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.