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Finding the Fourth Proportional to 175.16, 262.44 and 120.96

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Solution

The fourth proportional to 175.16, 262.44 and 120.96 is: 181.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.16 : 262.44 = 120.96 : x
  2. Step 2: Convert to fraction form
    175.16/262.44 = 120.96/x
  3. Step 3: Cross multiply
    175.16x = 262.44 × 120.96
  4. Step 4: Simplify right side
    175.16x = 31,744.74
  5. Step 5: Solve for x
    x = 31,744.74/175.16
  6. Step 6: Final answer
    x = 181.23

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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.