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Finding the Fourth Proportional to 143,912.84, 215,738.58 and 50,367.56

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Solution

The fourth proportional to 143,912.84, 215,738.58 and 50,367.56 is: 75,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,912.84 : 215,738.58 = 50,367.56 : x
  2. Step 2: Convert to fraction form
    143,912.84/215,738.58 = 50,367.56/x
  3. Step 3: Cross multiply
    143,912.84x = 215,738.58 × 50,367.56
  4. Step 4: Simplify right side
    143,912.84x = 10,866,225,872.46
  5. Step 5: Solve for x
    x = 10,866,225,872.46/143,912.84
  6. Step 6: Final answer
    x = 75,505.60

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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.