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Finding the Fourth Proportional to 396,179.69, 594,258.84 and 111,889.76

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Solution

The fourth proportional to 396,179.69, 594,258.84 and 111,889.76 is: 167,831.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,179.69 : 594,258.84 = 111,889.76 : x
  2. Step 2: Convert to fraction form
    396,179.69/594,258.84 = 111,889.76/x
  3. Step 3: Cross multiply
    396,179.69x = 594,258.84 × 111,889.76
  4. Step 4: Simplify right side
    396,179.69x = 66,491,476,014.18
  5. Step 5: Solve for x
    x = 66,491,476,014.18/396,179.69
  6. Step 6: Final answer
    x = 167,831.61

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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.