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Finding the Third Proportional to 91,671.75 and 137,553.19

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Solution

The third proportional to 91,671.75 and 137,553.19 is: 206,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,671.75 : 137,553.19 = 137,553.19 : x
  2. Step 2: Convert to fraction form
    91,671.75/137,553.19 = 137,553.19/x
  3. Step 3: Cross multiply
    91,671.75x = 137,553.19 × 137,553.19
  4. Step 4: Simplify right side
    91,671.75x = 18,920,879,391.41
  5. Step 5: Solve for x
    x = 18,920,879,391.41/91,671.75
  6. Step 6: Final answer
    x = 206,398.15

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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.