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Finding the Fourth Proportional to 252.02, 347.64 and 163.46

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Solution

The fourth proportional to 252.02, 347.64 and 163.46 is: 225.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.02 : 347.64 = 163.46 : x
  2. Step 2: Convert to fraction form
    252.02/347.64 = 163.46/x
  3. Step 3: Cross multiply
    252.02x = 347.64 × 163.46
  4. Step 4: Simplify right side
    252.02x = 56,825.23
  5. Step 5: Solve for x
    x = 56,825.23/252.02
  6. Step 6: Final answer
    x = 225.48

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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.