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Finding the Third Proportional to 121,666 and 182,012

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Solution

The third proportional to 121,666 and 182,012 is: 272,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,666 : 182,012 = 182,012 : x
  2. Step 2: Convert to fraction form
    121,666/182,012 = 182,012/x
  3. Step 3: Cross multiply
    121,666x = 182,012 × 182,012
  4. Step 4: Simplify right side
    121,666x = 33,128,368,144
  5. Step 5: Solve for x
    x = 33,128,368,144/121,666
  6. Step 6: Final answer
    x = 272,289.45

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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.