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Finding the Fourth Proportional to 175, 262.20 and 134.36

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Solution

The fourth proportional to 175, 262.20 and 134.36 is: 201.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    175 : 262.20 = 134.36 : x
  2. Step 2: Convert to fraction form
    175/262.20 = 134.36/x
  3. Step 3: Cross multiply
    175x = 262.20 × 134.36
  4. Step 4: Simplify right side
    175x = 35,229.19
  5. Step 5: Solve for x
    x = 35,229.19/175
  6. Step 6: Final answer
    x = 201.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.