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Finding the Third Proportional to 75,219 and 156,742

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Solution

The third proportional to 75,219 and 156,742 is: 326,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,219 : 156,742 = 156,742 : x
  2. Step 2: Convert to fraction form
    75,219/156,742 = 156,742/x
  3. Step 3: Cross multiply
    75,219x = 156,742 × 156,742
  4. Step 4: Simplify right side
    75,219x = 24,568,054,564
  5. Step 5: Solve for x
    x = 24,568,054,564/75,219
  6. Step 6: Final answer
    x = 326,620.33

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.