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Finding the Fourth Proportional to 80,396.55, 110,932.94 and 48,544.11

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Solution

The fourth proportional to 80,396.55, 110,932.94 and 48,544.11 is: 66,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,396.55 : 110,932.94 = 48,544.11 : x
  2. Step 2: Convert to fraction form
    80,396.55/110,932.94 = 48,544.11/x
  3. Step 3: Cross multiply
    80,396.55x = 110,932.94 × 48,544.11
  4. Step 4: Simplify right side
    80,396.55x = 5,385,140,599.26
  5. Step 5: Solve for x
    x = 5,385,140,599.26/80,396.55
  6. Step 6: Final answer
    x = 66,982.23

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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.