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Finding the Fourth Proportional to 264.44, 364.56 and 198.84

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Solution

The fourth proportional to 264.44, 364.56 and 198.84 is: 274.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.44 : 364.56 = 198.84 : x
  2. Step 2: Convert to fraction form
    264.44/364.56 = 198.84/x
  3. Step 3: Cross multiply
    264.44x = 364.56 × 198.84
  4. Step 4: Simplify right side
    264.44x = 72,489.11
  5. Step 5: Solve for x
    x = 72,489.11/264.44
  6. Step 6: Final answer
    x = 274.12

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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.