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Finding the Fourth Proportional to 202.44, 279.10 and 167.60

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Solution

The fourth proportional to 202.44, 279.10 and 167.60 is: 231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.44 : 279.10 = 167.60 : x
  2. Step 2: Convert to fraction form
    202.44/279.10 = 167.60/x
  3. Step 3: Cross multiply
    202.44x = 279.10 × 167.60
  4. Step 4: Simplify right side
    202.44x = 46,777.16
  5. Step 5: Solve for x
    x = 46,777.16/202.44
  6. Step 6: Final answer
    x = 231.07

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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.