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Finding the Fourth Proportional to 262.84, 362.90 and 164.64

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Solution

The fourth proportional to 262.84, 362.90 and 164.64 is: 227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.84 : 362.90 = 164.64 : x
  2. Step 2: Convert to fraction form
    262.84/362.90 = 164.64/x
  3. Step 3: Cross multiply
    262.84x = 362.90 × 164.64
  4. Step 4: Simplify right side
    262.84x = 59,747.86
  5. Step 5: Solve for x
    x = 59,747.86/262.84
  6. Step 6: Final answer
    x = 227.32

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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.