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Finding the Third Proportional to 89,191.50 and 192,720.75

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Solution

The third proportional to 89,191.50 and 192,720.75 is: 416,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,191.50 : 192,720.75 = 192,720.75 : x
  2. Step 2: Convert to fraction form
    89,191.50/192,720.75 = 192,720.75/x
  3. Step 3: Cross multiply
    89,191.50x = 192,720.75 × 192,720.75
  4. Step 4: Simplify right side
    89,191.50x = 37,141,287,480.56
  5. Step 5: Solve for x
    x = 37,141,287,480.56/89,191.50
  6. Step 6: Final answer
    x = 416,421.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.