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Finding the Fourth Proportional to 236.15, 354.35 and 167.53

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Solution

The fourth proportional to 236.15, 354.35 and 167.53 is: 251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.15 : 354.35 = 167.53 : x
  2. Step 2: Convert to fraction form
    236.15/354.35 = 167.53/x
  3. Step 3: Cross multiply
    236.15x = 354.35 × 167.53
  4. Step 4: Simplify right side
    236.15x = 59,364.26
  5. Step 5: Solve for x
    x = 59,364.26/236.15
  6. Step 6: Final answer
    x = 251.38

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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.