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Finding the Third Proportional to 124,605 and 186,408

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Solution

The third proportional to 124,605 and 186,408 is: 278,864.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,605 : 186,408 = 186,408 : x
  2. Step 2: Convert to fraction form
    124,605/186,408 = 186,408/x
  3. Step 3: Cross multiply
    124,605x = 186,408 × 186,408
  4. Step 4: Simplify right side
    124,605x = 34,747,942,464
  5. Step 5: Solve for x
    x = 34,747,942,464/124,605
  6. Step 6: Final answer
    x = 278,864.75

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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.