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Finding the Fourth Proportional to 376, 563.99 and 115.98

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Solution

The fourth proportional to 376, 563.99 and 115.98 is: 173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    376 : 563.99 = 115.98 : x
  2. Step 2: Convert to fraction form
    376/563.99 = 115.98/x
  3. Step 3: Cross multiply
    376x = 563.99 × 115.98
  4. Step 4: Simplify right side
    376x = 65,411.56
  5. Step 5: Solve for x
    x = 65,411.56/376
  6. Step 6: Final answer
    x = 173.97

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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.