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Finding the Fourth Proportional to 192,616.53, 288,977.96 and 80,349.52

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Solution

The fourth proportional to 192,616.53, 288,977.96 and 80,349.52 is: 120,546.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,616.53 : 288,977.96 = 80,349.52 : x
  2. Step 2: Convert to fraction form
    192,616.53/288,977.96 = 80,349.52/x
  3. Step 3: Cross multiply
    192,616.53x = 288,977.96 × 80,349.52
  4. Step 4: Simplify right side
    192,616.53x = 23,219,240,376.58
  5. Step 5: Solve for x
    x = 23,219,240,376.58/192,616.53
  6. Step 6: Final answer
    x = 120,546.46

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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.