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Finding the Third Proportional to 75,778 and 113,668

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Solution

The third proportional to 75,778 and 113,668 is: 170,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,778 : 113,668 = 113,668 : x
  2. Step 2: Convert to fraction form
    75,778/113,668 = 113,668/x
  3. Step 3: Cross multiply
    75,778x = 113,668 × 113,668
  4. Step 4: Simplify right side
    75,778x = 12,920,414,224
  5. Step 5: Solve for x
    x = 12,920,414,224/75,778
  6. Step 6: Final answer
    x = 170,503.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.