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Finding the Fourth Proportional to 67,481.82, 92,449.66 and 64,958.53

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Solution

The fourth proportional to 67,481.82, 92,449.66 and 64,958.53 is: 88,992.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,481.82 : 92,449.66 = 64,958.53 : x
  2. Step 2: Convert to fraction form
    67,481.82/92,449.66 = 64,958.53/x
  3. Step 3: Cross multiply
    67,481.82x = 92,449.66 × 64,958.53
  4. Step 4: Simplify right side
    67,481.82x = 6,005,394,012.60
  5. Step 5: Solve for x
    x = 6,005,394,012.60/67,481.82
  6. Step 6: Final answer
    x = 88,992.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.