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Finding the Fourth Proportional to 135,391.14, 203,119.16 and 41,896.89

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Solution

The fourth proportional to 135,391.14, 203,119.16 and 41,896.89 is: 62,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,391.14 : 203,119.16 = 41,896.89 : x
  2. Step 2: Convert to fraction form
    135,391.14/203,119.16 = 41,896.89/x
  3. Step 3: Cross multiply
    135,391.14x = 203,119.16 × 41,896.89
  4. Step 4: Simplify right side
    135,391.14x = 8,510,060,893.93
  5. Step 5: Solve for x
    x = 8,510,060,893.93/135,391.14
  6. Step 6: Final answer
    x = 62,855.38

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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.