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Finding the Fourth Proportional to 262.54, 362.22 and 157.65

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Solution

The fourth proportional to 262.54, 362.22 and 157.65 is: 217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.54 : 362.22 = 157.65 : x
  2. Step 2: Convert to fraction form
    262.54/362.22 = 157.65/x
  3. Step 3: Cross multiply
    262.54x = 362.22 × 157.65
  4. Step 4: Simplify right side
    262.54x = 57,102.92
  5. Step 5: Solve for x
    x = 57,102.92/262.54
  6. Step 6: Final answer
    x = 217.50

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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.