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Finding the Fourth Proportional to 73,204.62, 109,833.26 and 28,806.78

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Solution

The fourth proportional to 73,204.62, 109,833.26 and 28,806.78 is: 43,220.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,204.62 : 109,833.26 = 28,806.78 : x
  2. Step 2: Convert to fraction form
    73,204.62/109,833.26 = 28,806.78/x
  3. Step 3: Cross multiply
    73,204.62x = 109,833.26 × 28,806.78
  4. Step 4: Simplify right side
    73,204.62x = 3,163,942,557.50
  5. Step 5: Solve for x
    x = 3,163,942,557.50/73,204.62
  6. Step 6: Final answer
    x = 43,220.53

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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.