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Finding the Fourth Proportional to 68,993.94, 95,212.56 and 41,769.72

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Solution

The fourth proportional to 68,993.94, 95,212.56 and 41,769.72 is: 57,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,993.94 : 95,212.56 = 41,769.72 : x
  2. Step 2: Convert to fraction form
    68,993.94/95,212.56 = 41,769.72/x
  3. Step 3: Cross multiply
    68,993.94x = 95,212.56 × 41,769.72
  4. Step 4: Simplify right side
    68,993.94x = 3,977,001,971.68
  5. Step 5: Solve for x
    x = 3,977,001,971.68/68,993.94
  6. Step 6: Final answer
    x = 57,642.77

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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.