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Finding the Fourth Proportional to 233.28, 350.64 and 192.96

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Solution

The fourth proportional to 233.28, 350.64 and 192.96 is: 290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.28 : 350.64 = 192.96 : x
  2. Step 2: Convert to fraction form
    233.28/350.64 = 192.96/x
  3. Step 3: Cross multiply
    233.28x = 350.64 × 192.96
  4. Step 4: Simplify right side
    233.28x = 67,659.49
  5. Step 5: Solve for x
    x = 67,659.49/233.28
  6. Step 6: Final answer
    x = 290.04

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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.