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Finding the Fourth Proportional to 274,163.46, 411,245.19 and 154,228.38

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Solution

The fourth proportional to 274,163.46, 411,245.19 and 154,228.38 is: 231,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,163.46 : 411,245.19 = 154,228.38 : x
  2. Step 2: Convert to fraction form
    274,163.46/411,245.19 = 154,228.38/x
  3. Step 3: Cross multiply
    274,163.46x = 411,245.19 × 154,228.38
  4. Step 4: Simplify right side
    274,163.46x = 63,425,679,436.49
  5. Step 5: Solve for x
    x = 63,425,679,436.49/274,163.46
  6. Step 6: Final answer
    x = 231,342.57

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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.