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Finding the Fourth Proportional to 73,739.75, 110,610.03 and 18,335.75

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Solution

The fourth proportional to 73,739.75, 110,610.03 and 18,335.75 is: 27,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,739.75 : 110,610.03 = 18,335.75 : x
  2. Step 2: Convert to fraction form
    73,739.75/110,610.03 = 18,335.75/x
  3. Step 3: Cross multiply
    73,739.75x = 110,610.03 × 18,335.75
  4. Step 4: Simplify right side
    73,739.75x = 2,028,117,857.57
  5. Step 5: Solve for x
    x = 2,028,117,857.57/73,739.75
  6. Step 6: Final answer
    x = 27,503.73

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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.