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Finding the Fourth Proportional to 192.44, 288.02 and 164.90

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Solution

The fourth proportional to 192.44, 288.02 and 164.90 is: 246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.44 : 288.02 = 164.90 : x
  2. Step 2: Convert to fraction form
    192.44/288.02 = 164.90/x
  3. Step 3: Cross multiply
    192.44x = 288.02 × 164.90
  4. Step 4: Simplify right side
    192.44x = 47,494.50
  5. Step 5: Solve for x
    x = 47,494.50/192.44
  6. Step 6: Final answer
    x = 246.80

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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.