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Finding the Fourth Proportional to 175.52, 242.21 and 96.84

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Solution

The fourth proportional to 175.52, 242.21 and 96.84 is: 133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.52 : 242.21 = 96.84 : x
  2. Step 2: Convert to fraction form
    175.52/242.21 = 96.84/x
  3. Step 3: Cross multiply
    175.52x = 242.21 × 96.84
  4. Step 4: Simplify right side
    175.52x = 23,455.40
  5. Step 5: Solve for x
    x = 23,455.40/175.52
  6. Step 6: Final answer
    x = 133.63

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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.