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Finding the Third Proportional to 67,839.75 and 149,213.25

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Solution

The third proportional to 67,839.75 and 149,213.25 is: 328,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,839.75 : 149,213.25 = 149,213.25 : x
  2. Step 2: Convert to fraction form
    67,839.75/149,213.25 = 149,213.25/x
  3. Step 3: Cross multiply
    67,839.75x = 149,213.25 × 149,213.25
  4. Step 4: Simplify right side
    67,839.75x = 22,264,593,975.56
  5. Step 5: Solve for x
    x = 22,264,593,975.56/67,839.75
  6. Step 6: Final answer
    x = 328,193.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.