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Finding the Third Proportional to 81,325 and 173,018

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Solution

The third proportional to 81,325 and 173,018 is: 368,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,325 : 173,018 = 173,018 : x
  2. Step 2: Convert to fraction form
    81,325/173,018 = 173,018/x
  3. Step 3: Cross multiply
    81,325x = 173,018 × 173,018
  4. Step 4: Simplify right side
    81,325x = 29,935,228,324
  5. Step 5: Solve for x
    x = 29,935,228,324/81,325
  6. Step 6: Final answer
    x = 368,093.80

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.