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Finding the Third Proportional to 91,021 and 133,067

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Solution

The third proportional to 91,021 and 133,067 is: 194,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,021 : 133,067 = 133,067 : x
  2. Step 2: Convert to fraction form
    91,021/133,067 = 133,067/x
  3. Step 3: Cross multiply
    91,021x = 133,067 × 133,067
  4. Step 4: Simplify right side
    91,021x = 17,706,826,489
  5. Step 5: Solve for x
    x = 17,706,826,489/91,021
  6. Step 6: Final answer
    x = 194,535.62

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.