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Finding the Fourth Proportional to 264.25, 364.45 and 198.02

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Solution

The fourth proportional to 264.25, 364.45 and 198.02 is: 273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.25 : 364.45 = 198.02 : x
  2. Step 2: Convert to fraction form
    264.25/364.45 = 198.02/x
  3. Step 3: Cross multiply
    264.25x = 364.45 × 198.02
  4. Step 4: Simplify right side
    264.25x = 72,167.87
  5. Step 5: Solve for x
    x = 72,167.87/264.25
  6. Step 6: Final answer
    x = 273.10

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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.