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Finding the Fourth Proportional to 72,791.28, 109,197.84 and 26,033.20

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Solution

The fourth proportional to 72,791.28, 109,197.84 and 26,033.20 is: 39,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,791.28 : 109,197.84 = 26,033.20 : x
  2. Step 2: Convert to fraction form
    72,791.28/109,197.84 = 26,033.20/x
  3. Step 3: Cross multiply
    72,791.28x = 109,197.84 × 26,033.20
  4. Step 4: Simplify right side
    72,791.28x = 2,842,769,208.29
  5. Step 5: Solve for x
    x = 2,842,769,208.29/72,791.28
  6. Step 6: Final answer
    x = 39,053.71

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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.