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Finding the Third Proportional to 91,317.75 and 136,605

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Solution

The third proportional to 91,317.75 and 136,605 is: 204,351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,317.75 : 136,605 = 136,605 : x
  2. Step 2: Convert to fraction form
    91,317.75/136,605 = 136,605/x
  3. Step 3: Cross multiply
    91,317.75x = 136,605 × 136,605
  4. Step 4: Simplify right side
    91,317.75x = 18,660,926,025
  5. Step 5: Solve for x
    x = 18,660,926,025/91,317.75
  6. Step 6: Final answer
    x = 204,351.57

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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.