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Finding the Fourth Proportional to 66,788.87, 92,073.67 and 41,280.82

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Solution

The fourth proportional to 66,788.87, 92,073.67 and 41,280.82 is: 56,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,788.87 : 92,073.67 = 41,280.82 : x
  2. Step 2: Convert to fraction form
    66,788.87/92,073.67 = 41,280.82/x
  3. Step 3: Cross multiply
    66,788.87x = 92,073.67 × 41,280.82
  4. Step 4: Simplify right side
    66,788.87x = 3,800,876,617.35
  5. Step 5: Solve for x
    x = 3,800,876,617.35/66,788.87
  6. Step 6: Final answer
    x = 56,908.83

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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.