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Finding the Fourth Proportional to 73,383.77, 110,076.67 and 20,793.21

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Solution

The fourth proportional to 73,383.77, 110,076.67 and 20,793.21 is: 31,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,383.77 : 110,076.67 = 20,793.21 : x
  2. Step 2: Convert to fraction form
    73,383.77/110,076.67 = 20,793.21/x
  3. Step 3: Cross multiply
    73,383.77x = 110,076.67 × 20,793.21
  4. Step 4: Simplify right side
    73,383.77x = 2,288,846,928.61
  5. Step 5: Solve for x
    x = 2,288,846,928.61/73,383.77
  6. Step 6: Final answer
    x = 31,190.10

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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.