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Finding the Fourth Proportional to 330,003.87, 495,241.83 and 140,596.98

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Solution

The fourth proportional to 330,003.87, 495,241.83 and 140,596.98 is: 210,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,003.87 : 495,241.83 = 140,596.98 : x
  2. Step 2: Convert to fraction form
    330,003.87/495,241.83 = 140,596.98/x
  3. Step 3: Cross multiply
    330,003.87x = 495,241.83 × 140,596.98
  4. Step 4: Simplify right side
    330,003.87x = 69,629,505,667.67
  5. Step 5: Solve for x
    x = 69,629,505,667.67/330,003.87
  6. Step 6: Final answer
    x = 210,996.03

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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.