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Finding the Fourth Proportional to 192.92, 266.40 and 160.52

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Solution

The fourth proportional to 192.92, 266.40 and 160.52 is: 221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.92 : 266.40 = 160.52 : x
  2. Step 2: Convert to fraction form
    192.92/266.40 = 160.52/x
  3. Step 3: Cross multiply
    192.92x = 266.40 × 160.52
  4. Step 4: Simplify right side
    192.92x = 42,762.53
  5. Step 5: Solve for x
    x = 42,762.53/192.92
  6. Step 6: Final answer
    x = 221.66

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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.