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Finding the Fourth Proportional to 101,481.91, 152,056.64 and 54,046.64

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Solution

The fourth proportional to 101,481.91, 152,056.64 and 54,046.64 is: 80,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,481.91 : 152,056.64 = 54,046.64 : x
  2. Step 2: Convert to fraction form
    101,481.91/152,056.64 = 54,046.64/x
  3. Step 3: Cross multiply
    101,481.91x = 152,056.64 × 54,046.64
  4. Step 4: Simplify right side
    101,481.91x = 8,218,150,996.95
  5. Step 5: Solve for x
    x = 8,218,150,996.95/101,481.91
  6. Step 6: Final answer
    x = 80,981.44

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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.