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Finding the Fourth Proportional to 80,423.93, 120,620.01 and 27,110.63

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Solution

The fourth proportional to 80,423.93, 120,620.01 and 27,110.63 is: 40,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,423.93 : 120,620.01 = 27,110.63 : x
  2. Step 2: Convert to fraction form
    80,423.93/120,620.01 = 27,110.63/x
  3. Step 3: Cross multiply
    80,423.93x = 120,620.01 × 27,110.63
  4. Step 4: Simplify right side
    80,423.93x = 3,270,083,858.61
  5. Step 5: Solve for x
    x = 3,270,083,858.61/80,423.93
  6. Step 6: Final answer
    x = 40,660.59

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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.