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Finding the Third Proportional to 74,705.25 and 161,863.50

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Solution

The third proportional to 74,705.25 and 161,863.50 is: 350,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705.25 : 161,863.50 = 161,863.50 : x
  2. Step 2: Convert to fraction form
    74,705.25/161,863.50 = 161,863.50/x
  3. Step 3: Cross multiply
    74,705.25x = 161,863.50 × 161,863.50
  4. Step 4: Simplify right side
    74,705.25x = 26,199,792,632.25
  5. Step 5: Solve for x
    x = 26,199,792,632.25/74,705.25
  6. Step 6: Final answer
    x = 350,708.85

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.