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Finding the Fourth Proportional to 169,286.96, 253,711.74 and 80,567.66

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Solution

The fourth proportional to 169,286.96, 253,711.74 and 80,567.66 is: 120,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,286.96 : 253,711.74 = 80,567.66 : x
  2. Step 2: Convert to fraction form
    169,286.96/253,711.74 = 80,567.66/x
  3. Step 3: Cross multiply
    169,286.96x = 253,711.74 × 80,567.66
  4. Step 4: Simplify right side
    169,286.96x = 20,440,961,206.33
  5. Step 5: Solve for x
    x = 20,440,961,206.33/169,286.96
  6. Step 6: Final answer
    x = 120,747.41

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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.