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Finding the Third Proportional to 84,221 and 126,673

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Solution

The third proportional to 84,221 and 126,673 is: 190,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,221 : 126,673 = 126,673 : x
  2. Step 2: Convert to fraction form
    84,221/126,673 = 126,673/x
  3. Step 3: Cross multiply
    84,221x = 126,673 × 126,673
  4. Step 4: Simplify right side
    84,221x = 16,046,048,929
  5. Step 5: Solve for x
    x = 16,046,048,929/84,221
  6. Step 6: Final answer
    x = 190,523.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.