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Finding the Third Proportional to 150,885.75 and 209,177.25

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Solution

The third proportional to 150,885.75 and 209,177.25 is: 289,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,885.75 : 209,177.25 = 209,177.25 : x
  2. Step 2: Convert to fraction form
    150,885.75/209,177.25 = 209,177.25/x
  3. Step 3: Cross multiply
    150,885.75x = 209,177.25 × 209,177.25
  4. Step 4: Simplify right side
    150,885.75x = 43,755,121,917.56
  5. Step 5: Solve for x
    x = 43,755,121,917.56/150,885.75
  6. Step 6: Final answer
    x = 289,988.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.