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Finding the Third Proportional to 75,385 and 110,829

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Solution

The third proportional to 75,385 and 110,829 is: 162,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,385 : 110,829 = 110,829 : x
  2. Step 2: Convert to fraction form
    75,385/110,829 = 110,829/x
  3. Step 3: Cross multiply
    75,385x = 110,829 × 110,829
  4. Step 4: Simplify right side
    75,385x = 12,283,067,241
  5. Step 5: Solve for x
    x = 12,283,067,241/75,385
  6. Step 6: Final answer
    x = 162,937.82

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.