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Finding the Fourth Proportional to 159,241.41, 238,954.41 and 80,361.81

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Solution

The fourth proportional to 159,241.41, 238,954.41 and 80,361.81 is: 120,589.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,241.41 : 238,954.41 = 80,361.81 : x
  2. Step 2: Convert to fraction form
    159,241.41/238,954.41 = 80,361.81/x
  3. Step 3: Cross multiply
    159,241.41x = 238,954.41 × 80,361.81
  4. Step 4: Simplify right side
    159,241.41x = 19,202,808,895.08
  5. Step 5: Solve for x
    x = 19,202,808,895.08/159,241.41
  6. Step 6: Final answer
    x = 120,589.29

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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.