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Finding the Third Proportional to 155,982.75 and 231,679.88

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Solution

The third proportional to 155,982.75 and 231,679.88 is: 344,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,982.75 : 231,679.88 = 231,679.88 : x
  2. Step 2: Convert to fraction form
    155,982.75/231,679.88 = 231,679.88/x
  3. Step 3: Cross multiply
    155,982.75x = 231,679.88 × 231,679.88
  4. Step 4: Simplify right side
    155,982.75x = 53,675,564,480.02
  5. Step 5: Solve for x
    x = 53,675,564,480.02/155,982.75
  6. Step 6: Final answer
    x = 344,112.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.