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Finding the Fourth Proportional to 69,682.93, 96,168.87 and 39,469.53

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Solution

The fourth proportional to 69,682.93, 96,168.87 and 39,469.53 is: 54,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,682.93 : 96,168.87 = 39,469.53 : x
  2. Step 2: Convert to fraction form
    69,682.93/96,168.87 = 39,469.53/x
  3. Step 3: Cross multiply
    69,682.93x = 96,168.87 × 39,469.53
  4. Step 4: Simplify right side
    69,682.93x = 3,795,739,919.21
  5. Step 5: Solve for x
    x = 3,795,739,919.21/69,682.93
  6. Step 6: Final answer
    x = 54,471.59

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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.