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Finding the Third Proportional to 87,492 and 131,322

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Solution

The third proportional to 87,492 and 131,322 is: 197,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,492 : 131,322 = 131,322 : x
  2. Step 2: Convert to fraction form
    87,492/131,322 = 131,322/x
  3. Step 3: Cross multiply
    87,492x = 131,322 × 131,322
  4. Step 4: Simplify right side
    87,492x = 17,245,467,684
  5. Step 5: Solve for x
    x = 17,245,467,684/87,492
  6. Step 6: Final answer
    x = 197,109.08

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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.