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Finding the Third Proportional to 178,618.50 and 381,801

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Solution

The third proportional to 178,618.50 and 381,801 is: 816,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,618.50 : 381,801 = 381,801 : x
  2. Step 2: Convert to fraction form
    178,618.50/381,801 = 381,801/x
  3. Step 3: Cross multiply
    178,618.50x = 381,801 × 381,801
  4. Step 4: Simplify right side
    178,618.50x = 145,772,003,601
  5. Step 5: Solve for x
    x = 145,772,003,601/178,618.50
  6. Step 6: Final answer
    x = 816,108.09

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.