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Finding the Fourth Proportional to 222,620.73, 307,231.56 and 125,791.05

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Solution

The fourth proportional to 222,620.73, 307,231.56 and 125,791.05 is: 173,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,620.73 : 307,231.56 = 125,791.05 : x
  2. Step 2: Convert to fraction form
    222,620.73/307,231.56 = 125,791.05/x
  3. Step 3: Cross multiply
    222,620.73x = 307,231.56 × 125,791.05
  4. Step 4: Simplify right side
    222,620.73x = 38,646,980,525.54
  5. Step 5: Solve for x
    x = 38,646,980,525.54/222,620.73
  6. Step 6: Final answer
    x = 173,600.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.