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Finding the Fourth Proportional to 80,806.95, 121,175.24 and 27,484.49

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Solution

The fourth proportional to 80,806.95, 121,175.24 and 27,484.49 is: 41,214.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,806.95 : 121,175.24 = 27,484.49 : x
  2. Step 2: Convert to fraction form
    80,806.95/121,175.24 = 27,484.49/x
  3. Step 3: Cross multiply
    80,806.95x = 121,175.24 × 27,484.49
  4. Step 4: Simplify right side
    80,806.95x = 3,330,438,928.73
  5. Step 5: Solve for x
    x = 3,330,438,928.73/80,806.95
  6. Step 6: Final answer
    x = 41,214.76

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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.