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Finding the Fourth Proportional to 192.64, 288.56 and 96.26

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Solution

The fourth proportional to 192.64, 288.56 and 96.26 is: 144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.64 : 288.56 = 96.26 : x
  2. Step 2: Convert to fraction form
    192.64/288.56 = 96.26/x
  3. Step 3: Cross multiply
    192.64x = 288.56 × 96.26
  4. Step 4: Simplify right side
    192.64x = 27,776.79
  5. Step 5: Solve for x
    x = 27,776.79/192.64
  6. Step 6: Final answer
    x = 144.19

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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.