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Finding the Fourth Proportional to 66,874.76, 100,189.14 and 41,910.14

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Solution

The fourth proportional to 66,874.76, 100,189.14 and 41,910.14 is: 62,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,874.76 : 100,189.14 = 41,910.14 : x
  2. Step 2: Convert to fraction form
    66,874.76/100,189.14 = 41,910.14/x
  3. Step 3: Cross multiply
    66,874.76x = 100,189.14 × 41,910.14
  4. Step 4: Simplify right side
    66,874.76x = 4,198,940,883.88
  5. Step 5: Solve for x
    x = 4,198,940,883.88/66,874.76
  6. Step 6: Final answer
    x = 62,788.13

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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.