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Finding the Fourth Proportional to 222,470.62, 307,007.01 and 120,493.54

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Solution

The fourth proportional to 222,470.62, 307,007.01 and 120,493.54 is: 166,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,470.62 : 307,007.01 = 120,493.54 : x
  2. Step 2: Convert to fraction form
    222,470.62/307,007.01 = 120,493.54/x
  3. Step 3: Cross multiply
    222,470.62x = 307,007.01 × 120,493.54
  4. Step 4: Simplify right side
    222,470.62x = 36,992,361,823.47
  5. Step 5: Solve for x
    x = 36,992,361,823.47/222,470.62
  6. Step 6: Final answer
    x = 166,279.76

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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.