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Finding the Fourth Proportional to 299.94, 449.97 and 94.46

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Solution

The fourth proportional to 299.94, 449.97 and 94.46 is: 141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.94 : 449.97 = 94.46 : x
  2. Step 2: Convert to fraction form
    299.94/449.97 = 94.46/x
  3. Step 3: Cross multiply
    299.94x = 449.97 × 94.46
  4. Step 4: Simplify right side
    299.94x = 42,501.92
  5. Step 5: Solve for x
    x = 42,501.92/299.94
  6. Step 6: Final answer
    x = 141.70

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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.