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Finding the Third Proportional to 84,486 and 131,576

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Solution

The third proportional to 84,486 and 131,576 is: 204,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486 : 131,576 = 131,576 : x
  2. Step 2: Convert to fraction form
    84,486/131,576 = 131,576/x
  3. Step 3: Cross multiply
    84,486x = 131,576 × 131,576
  4. Step 4: Simplify right side
    84,486x = 17,312,243,776
  5. Step 5: Solve for x
    x = 17,312,243,776/84,486
  6. Step 6: Final answer
    x = 204,912.57

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.