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Finding the Fourth Proportional to 199.62, 275.76 and 167.04

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Solution

The fourth proportional to 199.62, 275.76 and 167.04 is: 230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.62 : 275.76 = 167.04 : x
  2. Step 2: Convert to fraction form
    199.62/275.76 = 167.04/x
  3. Step 3: Cross multiply
    199.62x = 275.76 × 167.04
  4. Step 4: Simplify right side
    199.62x = 46,062.95
  5. Step 5: Solve for x
    x = 46,062.95/199.62
  6. Step 6: Final answer
    x = 230.75

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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.