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Finding the Third Proportional to 91,379.39 and 136,311.61

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Solution

The third proportional to 91,379.39 and 136,311.61 is: 203,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,379.39 : 136,311.61 = 136,311.61 : x
  2. Step 2: Convert to fraction form
    91,379.39/136,311.61 = 136,311.61/x
  3. Step 3: Cross multiply
    91,379.39x = 136,311.61 × 136,311.61
  4. Step 4: Simplify right side
    91,379.39x = 18,580,854,850.40
  5. Step 5: Solve for x
    x = 18,580,854,850.40/91,379.39
  6. Step 6: Final answer
    x = 203,337.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.