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Finding the Fourth Proportional to 192,452.52, 288,690.59 and 74,124.21

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Solution

The fourth proportional to 192,452.52, 288,690.59 and 74,124.21 is: 111,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,452.52 : 288,690.59 = 74,124.21 : x
  2. Step 2: Convert to fraction form
    192,452.52/288,690.59 = 74,124.21/x
  3. Step 3: Cross multiply
    192,452.52x = 288,690.59 × 74,124.21
  4. Step 4: Simplify right side
    192,452.52x = 21,398,960,104.11
  5. Step 5: Solve for x
    x = 21,398,960,104.11/192,452.52
  6. Step 6: Final answer
    x = 111,190.86

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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.