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Finding the Fourth Proportional to 133,690.35, 200,560.83 and 53,734.54

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Solution

The fourth proportional to 133,690.35, 200,560.83 and 53,734.54 is: 80,611.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,690.35 : 200,560.83 = 53,734.54 : x
  2. Step 2: Convert to fraction form
    133,690.35/200,560.83 = 53,734.54/x
  3. Step 3: Cross multiply
    133,690.35x = 200,560.83 × 53,734.54
  4. Step 4: Simplify right side
    133,690.35x = 10,777,043,942.07
  5. Step 5: Solve for x
    x = 10,777,043,942.07/133,690.35
  6. Step 6: Final answer
    x = 80,611.98

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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.