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Finding the Fourth Proportional to 73,222.58, 109,791.82 and 28,825.11

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Solution

The fourth proportional to 73,222.58, 109,791.82 and 28,825.11 is: 43,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,222.58 : 109,791.82 = 28,825.11 : x
  2. Step 2: Convert to fraction form
    73,222.58/109,791.82 = 28,825.11/x
  3. Step 3: Cross multiply
    73,222.58x = 109,791.82 × 28,825.11
  4. Step 4: Simplify right side
    73,222.58x = 3,164,761,216.54
  5. Step 5: Solve for x
    x = 3,164,761,216.54/73,222.58
  6. Step 6: Final answer
    x = 43,221.11

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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.