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Finding the Third Proportional to 79,579.50 and 124,212.75

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Solution

The third proportional to 79,579.50 and 124,212.75 is: 193,879.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.50 : 124,212.75 = 124,212.75 : x
  2. Step 2: Convert to fraction form
    79,579.50/124,212.75 = 124,212.75/x
  3. Step 3: Cross multiply
    79,579.50x = 124,212.75 × 124,212.75
  4. Step 4: Simplify right side
    79,579.50x = 15,428,807,262.56
  5. Step 5: Solve for x
    x = 15,428,807,262.56/79,579.50
  6. Step 6: Final answer
    x = 193,879.17

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.