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Finding the Fourth Proportional to 80,597.46, 120,935.79 and 36,255.54

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Solution

The fourth proportional to 80,597.46, 120,935.79 and 36,255.54 is: 54,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,597.46 : 120,935.79 = 36,255.54 : x
  2. Step 2: Convert to fraction form
    80,597.46/120,935.79 = 36,255.54/x
  3. Step 3: Cross multiply
    80,597.46x = 120,935.79 × 36,255.54
  4. Step 4: Simplify right side
    80,597.46x = 4,384,592,371.78
  5. Step 5: Solve for x
    x = 4,384,592,371.78/80,597.46
  6. Step 6: Final answer
    x = 54,401.12

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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.