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Finding the Fourth Proportional to 135,603.94, 203,366.69 and 45,636.73

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Solution

The fourth proportional to 135,603.94, 203,366.69 and 45,636.73 is: 68,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,603.94 : 203,366.69 = 45,636.73 : x
  2. Step 2: Convert to fraction form
    135,603.94/203,366.69 = 45,636.73/x
  3. Step 3: Cross multiply
    135,603.94x = 203,366.69 × 45,636.73
  4. Step 4: Simplify right side
    135,603.94x = 9,280,991,236.82
  5. Step 5: Solve for x
    x = 9,280,991,236.82/135,603.94
  6. Step 6: Final answer
    x = 68,441.90

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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.