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Finding the Fourth Proportional to 262.49, 362.22 and 151.95

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Solution

The fourth proportional to 262.49, 362.22 and 151.95 is: 209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.49 : 362.22 = 151.95 : x
  2. Step 2: Convert to fraction form
    262.49/362.22 = 151.95/x
  3. Step 3: Cross multiply
    262.49x = 362.22 × 151.95
  4. Step 4: Simplify right side
    262.49x = 55,040.12
  5. Step 5: Solve for x
    x = 55,040.12/262.49
  6. Step 6: Final answer
    x = 209.69

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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.