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Finding the Fourth Proportional to 262.43, 362.07 and 151.92

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Solution

The fourth proportional to 262.43, 362.07 and 151.92 is: 209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.43 : 362.07 = 151.92 : x
  2. Step 2: Convert to fraction form
    262.43/362.07 = 151.92/x
  3. Step 3: Cross multiply
    262.43x = 362.07 × 151.92
  4. Step 4: Simplify right side
    262.43x = 55,005.67
  5. Step 5: Solve for x
    x = 55,005.67/262.43
  6. Step 6: Final answer
    x = 209.60

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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.