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Finding the Third Proportional to 85,862.25 and 131,355

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Solution

The third proportional to 85,862.25 and 131,355 is: 200,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,862.25 : 131,355 = 131,355 : x
  2. Step 2: Convert to fraction form
    85,862.25/131,355 = 131,355/x
  3. Step 3: Cross multiply
    85,862.25x = 131,355 × 131,355
  4. Step 4: Simplify right side
    85,862.25x = 17,254,136,025
  5. Step 5: Solve for x
    x = 17,254,136,025/85,862.25
  6. Step 6: Final answer
    x = 200,951.36

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.