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Finding the Fourth Proportional to 192.07, 265.11 and 113.41

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Solution

The fourth proportional to 192.07, 265.11 and 113.41 is: 156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.07 : 265.11 = 113.41 : x
  2. Step 2: Convert to fraction form
    192.07/265.11 = 113.41/x
  3. Step 3: Cross multiply
    192.07x = 265.11 × 113.41
  4. Step 4: Simplify right side
    192.07x = 30,066.95
  5. Step 5: Solve for x
    x = 30,066.95/192.07
  6. Step 6: Final answer
    x = 156.54

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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.