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Finding the Third Proportional to 140,056.50 and 217,227

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Solution

The third proportional to 140,056.50 and 217,227 is: 336,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,056.50 : 217,227 = 217,227 : x
  2. Step 2: Convert to fraction form
    140,056.50/217,227 = 217,227/x
  3. Step 3: Cross multiply
    140,056.50x = 217,227 × 217,227
  4. Step 4: Simplify right side
    140,056.50x = 47,187,569,529
  5. Step 5: Solve for x
    x = 47,187,569,529/140,056.50
  6. Step 6: Final answer
    x = 336,918.10

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.