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Finding the Third Proportional to 74,482 and 156,622

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Solution

The third proportional to 74,482 and 156,622 is: 329,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,482 : 156,622 = 156,622 : x
  2. Step 2: Convert to fraction form
    74,482/156,622 = 156,622/x
  3. Step 3: Cross multiply
    74,482x = 156,622 × 156,622
  4. Step 4: Simplify right side
    74,482x = 24,530,450,884
  5. Step 5: Solve for x
    x = 24,530,450,884/74,482
  6. Step 6: Final answer
    x = 329,347.37

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.