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Finding the Third Proportional to 39,220.45 and 80,761.64

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Solution

The third proportional to 39,220.45 and 80,761.64 is: 166,302.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,220.45 : 80,761.64 = 80,761.64 : x
  2. Step 2: Convert to fraction form
    39,220.45/80,761.64 = 80,761.64/x
  3. Step 3: Cross multiply
    39,220.45x = 80,761.64 × 80,761.64
  4. Step 4: Simplify right side
    39,220.45x = 6,522,442,596.44
  5. Step 5: Solve for x
    x = 6,522,442,596.44/39,220.45
  6. Step 6: Final answer
    x = 166,302.07

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.