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Finding the Fourth Proportional to 192.33, 265.32 and 113.62

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Solution

The fourth proportional to 192.33, 265.32 and 113.62 is: 156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.33 : 265.32 = 113.62 : x
  2. Step 2: Convert to fraction form
    192.33/265.32 = 113.62/x
  3. Step 3: Cross multiply
    192.33x = 265.32 × 113.62
  4. Step 4: Simplify right side
    192.33x = 30,145.66
  5. Step 5: Solve for x
    x = 30,145.66/192.33
  6. Step 6: Final answer
    x = 156.74

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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.