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Finding the Third Proportional to 100,944.50 and 156,743

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Solution

The third proportional to 100,944.50 and 156,743 is: 243,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,944.50 : 156,743 = 156,743 : x
  2. Step 2: Convert to fraction form
    100,944.50/156,743 = 156,743/x
  3. Step 3: Cross multiply
    100,944.50x = 156,743 × 156,743
  4. Step 4: Simplify right side
    100,944.50x = 24,568,368,049
  5. Step 5: Solve for x
    x = 24,568,368,049/100,944.50
  6. Step 6: Final answer
    x = 243,384.91

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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.