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Finding the Third Proportional to 75,638 and 105,994

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Solution

The third proportional to 75,638 and 105,994 is: 148,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,638 : 105,994 = 105,994 : x
  2. Step 2: Convert to fraction form
    75,638/105,994 = 105,994/x
  3. Step 3: Cross multiply
    75,638x = 105,994 × 105,994
  4. Step 4: Simplify right side
    75,638x = 11,234,728,036
  5. Step 5: Solve for x
    x = 11,234,728,036/75,638
  6. Step 6: Final answer
    x = 148,532.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.