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Finding the Third Proportional to 74,716.50 and 161,240.25

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Solution

The third proportional to 74,716.50 and 161,240.25 is: 347,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,716.50 : 161,240.25 = 161,240.25 : x
  2. Step 2: Convert to fraction form
    74,716.50/161,240.25 = 161,240.25/x
  3. Step 3: Cross multiply
    74,716.50x = 161,240.25 × 161,240.25
  4. Step 4: Simplify right side
    74,716.50x = 25,998,418,220.06
  5. Step 5: Solve for x
    x = 25,998,418,220.06/74,716.50
  6. Step 6: Final answer
    x = 347,960.87

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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.