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Finding the Fourth Proportional to 192,481.88, 288,717.95 and 52,236.86

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Solution

The fourth proportional to 192,481.88, 288,717.95 and 52,236.86 is: 78,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,481.88 : 288,717.95 = 52,236.86 : x
  2. Step 2: Convert to fraction form
    192,481.88/288,717.95 = 52,236.86/x
  3. Step 3: Cross multiply
    192,481.88x = 288,717.95 × 52,236.86
  4. Step 4: Simplify right side
    192,481.88x = 15,081,717,820.64
  5. Step 5: Solve for x
    x = 15,081,717,820.64/192,481.88
  6. Step 6: Final answer
    x = 78,353.96

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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.