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Finding the Fourth Proportional to 73,175.76, 109,680.80 and 33,651.28

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Solution

The fourth proportional to 73,175.76, 109,680.80 and 33,651.28 is: 50,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,175.76 : 109,680.80 = 33,651.28 : x
  2. Step 2: Convert to fraction form
    73,175.76/109,680.80 = 33,651.28/x
  3. Step 3: Cross multiply
    73,175.76x = 109,680.80 × 33,651.28
  4. Step 4: Simplify right side
    73,175.76x = 3,690,899,311.42
  5. Step 5: Solve for x
    x = 3,690,899,311.42/73,175.76
  6. Step 6: Final answer
    x = 50,438.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.