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Finding the Fourth Proportional to 276,431.37, 381,592.99 and 185,839.88

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Solution

The fourth proportional to 276,431.37, 381,592.99 and 185,839.88 is: 256,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,431.37 : 381,592.99 = 185,839.88 : x
  2. Step 2: Convert to fraction form
    276,431.37/381,592.99 = 185,839.88/x
  3. Step 3: Cross multiply
    276,431.37x = 381,592.99 × 185,839.88
  4. Step 4: Simplify right side
    276,431.37x = 70,915,193,794.78
  5. Step 5: Solve for x
    x = 70,915,193,794.78/276,431.37
  6. Step 6: Final answer
    x = 256,538.16

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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.