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Finding the Third Proportional to 100,943.50 and 156,740.75

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Solution

The third proportional to 100,943.50 and 156,740.75 is: 243,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,943.50 : 156,740.75 = 156,740.75 : x
  2. Step 2: Convert to fraction form
    100,943.50/156,740.75 = 156,740.75/x
  3. Step 3: Cross multiply
    100,943.50x = 156,740.75 × 156,740.75
  4. Step 4: Simplify right side
    100,943.50x = 24,567,662,710.56
  5. Step 5: Solve for x
    x = 24,567,662,710.56/100,943.50
  6. Step 6: Final answer
    x = 243,380.33

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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.