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Finding the Fourth Proportional to 268,936.42, 371,101.44 and 154,183.50

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Solution

The fourth proportional to 268,936.42, 371,101.44 and 154,183.50 is: 212,755.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,936.42 : 371,101.44 = 154,183.50 : x
  2. Step 2: Convert to fraction form
    268,936.42/371,101.44 = 154,183.50/x
  3. Step 3: Cross multiply
    268,936.42x = 371,101.44 × 154,183.50
  4. Step 4: Simplify right side
    268,936.42x = 57,217,718,368.33
  5. Step 5: Solve for x
    x = 57,217,718,368.33/268,936.42
  6. Step 6: Final answer
    x = 212,755.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.