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Finding the Fourth Proportional to 79,611.42, 119,361.78 and 35,213.94

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Solution

The fourth proportional to 79,611.42, 119,361.78 and 35,213.94 is: 52,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,611.42 : 119,361.78 = 35,213.94 : x
  2. Step 2: Convert to fraction form
    79,611.42/119,361.78 = 35,213.94/x
  3. Step 3: Cross multiply
    79,611.42x = 119,361.78 × 35,213.94
  4. Step 4: Simplify right side
    79,611.42x = 4,203,198,559.21
  5. Step 5: Solve for x
    x = 4,203,198,559.21/79,611.42
  6. Step 6: Final answer
    x = 52,796.43

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Why These Related Problems?

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