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Finding the Fourth Proportional to 73,871.28, 110,855.52 and 27,124.56

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Solution

The fourth proportional to 73,871.28, 110,855.52 and 27,124.56 is: 40,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,871.28 : 110,855.52 = 27,124.56 : x
  2. Step 2: Convert to fraction form
    73,871.28/110,855.52 = 27,124.56/x
  3. Step 3: Cross multiply
    73,871.28x = 110,855.52 × 27,124.56
  4. Step 4: Simplify right side
    73,871.28x = 3,006,907,203.57
  5. Step 5: Solve for x
    x = 3,006,907,203.57/73,871.28
  6. Step 6: Final answer
    x = 40,704.69

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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.