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Finding the Third Proportional to 61,642 and 126,204

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Solution

The third proportional to 61,642 and 126,204 is: 258,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,642 : 126,204 = 126,204 : x
  2. Step 2: Convert to fraction form
    61,642/126,204 = 126,204/x
  3. Step 3: Cross multiply
    61,642x = 126,204 × 126,204
  4. Step 4: Simplify right side
    61,642x = 15,927,449,616
  5. Step 5: Solve for x
    x = 15,927,449,616/61,642
  6. Step 6: Final answer
    x = 258,386.32

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.