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Finding the Fourth Proportional to 203,957.40, 305,936.10 and 181,212.60

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Solution

The fourth proportional to 203,957.40, 305,936.10 and 181,212.60 is: 271,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,957.40 : 305,936.10 = 181,212.60 : x
  2. Step 2: Convert to fraction form
    203,957.40/305,936.10 = 181,212.60/x
  3. Step 3: Cross multiply
    203,957.40x = 305,936.10 × 181,212.60
  4. Step 4: Simplify right side
    203,957.40x = 55,439,476,114.86
  5. Step 5: Solve for x
    x = 55,439,476,114.86/203,957.40
  6. Step 6: Final answer
    x = 271,818.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.