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Finding the Third Proportional to 75,162 and 163,446

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Solution

The third proportional to 75,162 and 163,446 is: 355,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,162 : 163,446 = 163,446 : x
  2. Step 2: Convert to fraction form
    75,162/163,446 = 163,446/x
  3. Step 3: Cross multiply
    75,162x = 163,446 × 163,446
  4. Step 4: Simplify right side
    75,162x = 26,714,594,916
  5. Step 5: Solve for x
    x = 26,714,594,916/75,162
  6. Step 6: Final answer
    x = 355,426.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.