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Finding the Fourth Proportional to 279,575.28, 419,363.91 and 111,084.66

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Solution

The fourth proportional to 279,575.28, 419,363.91 and 111,084.66 is: 166,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,575.28 : 419,363.91 = 111,084.66 : x
  2. Step 2: Convert to fraction form
    279,575.28/419,363.91 = 111,084.66/x
  3. Step 3: Cross multiply
    279,575.28x = 419,363.91 × 111,084.66
  4. Step 4: Simplify right side
    279,575.28x = 46,584,897,358.62
  5. Step 5: Solve for x
    x = 46,584,897,358.62/279,575.28
  6. Step 6: Final answer
    x = 166,627.38

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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.