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Finding the Third Proportional to 172,968 and 259,452

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Solution

The third proportional to 172,968 and 259,452 is: 389,178

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,968 : 259,452 = 259,452 : x
  2. Step 2: Convert to fraction form
    172,968/259,452 = 259,452/x
  3. Step 3: Cross multiply
    172,968x = 259,452 × 259,452
  4. Step 4: Simplify right side
    172,968x = 67,315,340,304
  5. Step 5: Solve for x
    x = 67,315,340,304/172,968
  6. Step 6: Final answer
    x = 389,178

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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.