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Finding the Third Proportional to 140,161.75 and 210,199.25

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Solution

The third proportional to 140,161.75 and 210,199.25 is: 315,233.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,161.75 : 210,199.25 = 210,199.25 : x
  2. Step 2: Convert to fraction form
    140,161.75/210,199.25 = 210,199.25/x
  3. Step 3: Cross multiply
    140,161.75x = 210,199.25 × 210,199.25
  4. Step 4: Simplify right side
    140,161.75x = 44,183,724,700.56
  5. Step 5: Solve for x
    x = 44,183,724,700.56/140,161.75
  6. Step 6: Final answer
    x = 315,233.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.