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Finding the Fourth Proportional to 236.26, 355.64 and 168.25

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Solution

The fourth proportional to 236.26, 355.64 and 168.25 is: 253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.26 : 355.64 = 168.25 : x
  2. Step 2: Convert to fraction form
    236.26/355.64 = 168.25/x
  3. Step 3: Cross multiply
    236.26x = 355.64 × 168.25
  4. Step 4: Simplify right side
    236.26x = 59,837.31
  5. Step 5: Solve for x
    x = 59,837.31/236.26
  6. Step 6: Final answer
    x = 253.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.