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Finding the Fourth Proportional to 73,191.36, 109,813.38 and 28,793.52

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Solution

The fourth proportional to 73,191.36, 109,813.38 and 28,793.52 is: 43,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,191.36 : 109,813.38 = 28,793.52 : x
  2. Step 2: Convert to fraction form
    73,191.36/109,813.38 = 28,793.52/x
  3. Step 3: Cross multiply
    73,191.36x = 109,813.38 × 28,793.52
  4. Step 4: Simplify right side
    73,191.36x = 3,161,913,753.30
  5. Step 5: Solve for x
    x = 3,161,913,753.30/73,191.36
  6. Step 6: Final answer
    x = 43,200.64

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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.