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Finding the Fourth Proportional to 236.93, 354.78 and 164.84

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Solution

The fourth proportional to 236.93, 354.78 and 164.84 is: 246.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.93 : 354.78 = 164.84 : x
  2. Step 2: Convert to fraction form
    236.93/354.78 = 164.84/x
  3. Step 3: Cross multiply
    236.93x = 354.78 × 164.84
  4. Step 4: Simplify right side
    236.93x = 58,480.16
  5. Step 5: Solve for x
    x = 58,480.16/236.93
  6. Step 6: Final answer
    x = 246.83

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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.