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Finding the Fourth Proportional to 70,067.62, 104,965.35 and 62,213.86

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Solution

The fourth proportional to 70,067.62, 104,965.35 and 62,213.86 is: 93,199.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,067.62 : 104,965.35 = 62,213.86 : x
  2. Step 2: Convert to fraction form
    70,067.62/104,965.35 = 62,213.86/x
  3. Step 3: Cross multiply
    70,067.62x = 104,965.35 × 62,213.86
  4. Step 4: Simplify right side
    70,067.62x = 6,530,299,589.75
  5. Step 5: Solve for x
    x = 6,530,299,589.75/70,067.62
  6. Step 6: Final answer
    x = 93,199.96

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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.