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Finding the Fourth Proportional to 299.97, 414 and 175.68

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Solution

The fourth proportional to 299.97, 414 and 175.68 is: 242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.97 : 414 = 175.68 : x
  2. Step 2: Convert to fraction form
    299.97/414 = 175.68/x
  3. Step 3: Cross multiply
    299.97x = 414 × 175.68
  4. Step 4: Simplify right side
    299.97x = 72,731.52
  5. Step 5: Solve for x
    x = 72,731.52/299.97
  6. Step 6: Final answer
    x = 242.46

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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.