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Finding the Fourth Proportional to 193.24, 266.93 and 160.90

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Solution

The fourth proportional to 193.24, 266.93 and 160.90 is: 222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.24 : 266.93 = 160.90 : x
  2. Step 2: Convert to fraction form
    193.24/266.93 = 160.90/x
  3. Step 3: Cross multiply
    193.24x = 266.93 × 160.90
  4. Step 4: Simplify right side
    193.24x = 42,949.04
  5. Step 5: Solve for x
    x = 42,949.04/193.24
  6. Step 6: Final answer
    x = 222.26

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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.