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Finding the Fourth Proportional to 192.64, 264.96 and 179.68

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Solution

The fourth proportional to 192.64, 264.96 and 179.68 is: 247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.64 : 264.96 = 179.68 : x
  2. Step 2: Convert to fraction form
    192.64/264.96 = 179.68/x
  3. Step 3: Cross multiply
    192.64x = 264.96 × 179.68
  4. Step 4: Simplify right side
    192.64x = 47,608.01
  5. Step 5: Solve for x
    x = 47,608.01/192.64
  6. Step 6: Final answer
    x = 247.13

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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.