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Finding the Third Proportional to 84,885 and 131,018

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Solution

The third proportional to 84,885 and 131,018 is: 202,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,885 : 131,018 = 131,018 : x
  2. Step 2: Convert to fraction form
    84,885/131,018 = 131,018/x
  3. Step 3: Cross multiply
    84,885x = 131,018 × 131,018
  4. Step 4: Simplify right side
    84,885x = 17,165,716,324
  5. Step 5: Solve for x
    x = 17,165,716,324/84,885
  6. Step 6: Final answer
    x = 202,223.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.