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Finding the Third Proportional to 178,756 and 372,213

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Solution

The third proportional to 178,756 and 372,213 is: 775,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,756 : 372,213 = 372,213 : x
  2. Step 2: Convert to fraction form
    178,756/372,213 = 372,213/x
  3. Step 3: Cross multiply
    178,756x = 372,213 × 372,213
  4. Step 4: Simplify right side
    178,756x = 138,542,517,369
  5. Step 5: Solve for x
    x = 138,542,517,369/178,756
  6. Step 6: Final answer
    x = 775,037.02

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.