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Finding the Fourth Proportional to 135,850.56, 203,776.58 and 79,651.29

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Solution

The fourth proportional to 135,850.56, 203,776.58 and 79,651.29 is: 119,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,850.56 : 203,776.58 = 79,651.29 : x
  2. Step 2: Convert to fraction form
    135,850.56/203,776.58 = 79,651.29/x
  3. Step 3: Cross multiply
    135,850.56x = 203,776.58 × 79,651.29
  4. Step 4: Simplify right side
    135,850.56x = 16,231,067,070.53
  5. Step 5: Solve for x
    x = 16,231,067,070.53/135,850.56
  6. Step 6: Final answer
    x = 119,477.37

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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.