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Finding the Third Proportional to 74,450 and 162,286

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Solution

The third proportional to 74,450 and 162,286 is: 353,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,450 : 162,286 = 162,286 : x
  2. Step 2: Convert to fraction form
    74,450/162,286 = 162,286/x
  3. Step 3: Cross multiply
    74,450x = 162,286 × 162,286
  4. Step 4: Simplify right side
    74,450x = 26,336,745,796
  5. Step 5: Solve for x
    x = 26,336,745,796/74,450
  6. Step 6: Final answer
    x = 353,750.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.