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Finding the Fourth Proportional to 192.46, 265.58 and 109.56

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Solution

The fourth proportional to 192.46, 265.58 and 109.56 is: 151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.46 : 265.58 = 109.56 : x
  2. Step 2: Convert to fraction form
    192.46/265.58 = 109.56/x
  3. Step 3: Cross multiply
    192.46x = 265.58 × 109.56
  4. Step 4: Simplify right side
    192.46x = 29,096.94
  5. Step 5: Solve for x
    x = 29,096.94/192.46
  6. Step 6: Final answer
    x = 151.18

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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.