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Finding the Third Proportional to 82,315 and 126,893

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Solution

The third proportional to 82,315 and 126,893 is: 195,612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,315 : 126,893 = 126,893 : x
  2. Step 2: Convert to fraction form
    82,315/126,893 = 126,893/x
  3. Step 3: Cross multiply
    82,315x = 126,893 × 126,893
  4. Step 4: Simplify right side
    82,315x = 16,101,833,449
  5. Step 5: Solve for x
    x = 16,101,833,449/82,315
  6. Step 6: Final answer
    x = 195,612.38

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.