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Finding the Third Proportional to 75,778 and 159,413

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Solution

The third proportional to 75,778 and 159,413 is: 335,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,778 : 159,413 = 159,413 : x
  2. Step 2: Convert to fraction form
    75,778/159,413 = 159,413/x
  3. Step 3: Cross multiply
    75,778x = 159,413 × 159,413
  4. Step 4: Simplify right side
    75,778x = 25,412,504,569
  5. Step 5: Solve for x
    x = 25,412,504,569/75,778
  6. Step 6: Final answer
    x = 335,354.65

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.