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Finding the Fourth Proportional to 73,704.75, 110,557.85 and 18,300.75

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Solution

The fourth proportional to 73,704.75, 110,557.85 and 18,300.75 is: 27,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,704.75 : 110,557.85 = 18,300.75 : x
  2. Step 2: Convert to fraction form
    73,704.75/110,557.85 = 18,300.75/x
  3. Step 3: Cross multiply
    73,704.75x = 110,557.85 × 18,300.75
  4. Step 4: Simplify right side
    73,704.75x = 2,023,291,481.88
  5. Step 5: Solve for x
    x = 2,023,291,481.88/73,704.75
  6. Step 6: Final answer
    x = 27,451.30

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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.