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Finding the Third Proportional to 81,164.50 and 124,825

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Solution

The third proportional to 81,164.50 and 124,825 is: 191,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,164.50 : 124,825 = 124,825 : x
  2. Step 2: Convert to fraction form
    81,164.50/124,825 = 124,825/x
  3. Step 3: Cross multiply
    81,164.50x = 124,825 × 124,825
  4. Step 4: Simplify right side
    81,164.50x = 15,581,280,625
  5. Step 5: Solve for x
    x = 15,581,280,625/81,164.50
  6. Step 6: Final answer
    x = 191,971.62

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.