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Finding the Fourth Proportional to 135,591.37, 203,310.81 and 55,607.31

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Solution

The fourth proportional to 135,591.37, 203,310.81 and 55,607.31 is: 83,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,591.37 : 203,310.81 = 55,607.31 : x
  2. Step 2: Convert to fraction form
    135,591.37/203,310.81 = 55,607.31/x
  3. Step 3: Cross multiply
    135,591.37x = 203,310.81 × 55,607.31
  4. Step 4: Simplify right side
    135,591.37x = 11,305,567,238.02
  5. Step 5: Solve for x
    x = 11,305,567,238.02/135,591.37
  6. Step 6: Final answer
    x = 83,379.70

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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.