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Finding the Fourth Proportional to 74,517.72, 111,774.96 and 35,052.96

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Solution

The fourth proportional to 74,517.72, 111,774.96 and 35,052.96 is: 52,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,517.72 : 111,774.96 = 35,052.96 : x
  2. Step 2: Convert to fraction form
    74,517.72/111,774.96 = 35,052.96/x
  3. Step 3: Cross multiply
    74,517.72x = 111,774.96 × 35,052.96
  4. Step 4: Simplify right side
    74,517.72x = 3,918,043,201.88
  5. Step 5: Solve for x
    x = 3,918,043,201.88/74,517.72
  6. Step 6: Final answer
    x = 52,578.68

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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.