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Finding the Fourth Proportional to 80,793.79, 121,246.04 and 28,203.28

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Solution

The fourth proportional to 80,793.79, 121,246.04 and 28,203.28 is: 42,324.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.79 : 121,246.04 = 28,203.28 : x
  2. Step 2: Convert to fraction form
    80,793.79/121,246.04 = 28,203.28/x
  3. Step 3: Cross multiply
    80,793.79x = 121,246.04 × 28,203.28
  4. Step 4: Simplify right side
    80,793.79x = 3,419,536,015.01
  5. Step 5: Solve for x
    x = 3,419,536,015.01/80,793.79
  6. Step 6: Final answer
    x = 42,324.24

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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.