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Finding the Third Proportional to 206,871.75 and 316,324.50

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Solution

The third proportional to 206,871.75 and 316,324.50 is: 483,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,871.75 : 316,324.50 = 316,324.50 : x
  2. Step 2: Convert to fraction form
    206,871.75/316,324.50 = 316,324.50/x
  3. Step 3: Cross multiply
    206,871.75x = 316,324.50 × 316,324.50
  4. Step 4: Simplify right side
    206,871.75x = 100,061,189,300.25
  5. Step 5: Solve for x
    x = 100,061,189,300.25/206,871.75
  6. Step 6: Final answer
    x = 483,687.06

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.