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Finding the Fourth Proportional to 192.76, 265.74 and 169.24

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Solution

The fourth proportional to 192.76, 265.74 and 169.24 is: 233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.76 : 265.74 = 169.24 : x
  2. Step 2: Convert to fraction form
    192.76/265.74 = 169.24/x
  3. Step 3: Cross multiply
    192.76x = 265.74 × 169.24
  4. Step 4: Simplify right side
    192.76x = 44,973.84
  5. Step 5: Solve for x
    x = 44,973.84/192.76
  6. Step 6: Final answer
    x = 233.32

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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.