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Finding the Third Proportional to 103,221 and 158,706

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Solution

The third proportional to 103,221 and 158,706 is: 244,016.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,221 : 158,706 = 158,706 : x
  2. Step 2: Convert to fraction form
    103,221/158,706 = 158,706/x
  3. Step 3: Cross multiply
    103,221x = 158,706 × 158,706
  4. Step 4: Simplify right side
    103,221x = 25,187,594,436
  5. Step 5: Solve for x
    x = 25,187,594,436/103,221
  6. Step 6: Final answer
    x = 244,016.18

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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.