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Finding the Fourth Proportional to 68,991.42, 95,245.94 and 41,772.39

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Solution

The fourth proportional to 68,991.42, 95,245.94 and 41,772.39 is: 57,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.42 : 95,245.94 = 41,772.39 : x
  2. Step 2: Convert to fraction form
    68,991.42/95,245.94 = 41,772.39/x
  3. Step 3: Cross multiply
    68,991.42x = 95,245.94 × 41,772.39
  4. Step 4: Simplify right side
    68,991.42x = 3,978,650,551.60
  5. Step 5: Solve for x
    x = 3,978,650,551.60/68,991.42
  6. Step 6: Final answer
    x = 57,668.77

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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.