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Finding the Fourth Proportional to 268.42, 370.54 and 168.92

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Solution

The fourth proportional to 268.42, 370.54 and 168.92 is: 233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.42 : 370.54 = 168.92 : x
  2. Step 2: Convert to fraction form
    268.42/370.54 = 168.92/x
  3. Step 3: Cross multiply
    268.42x = 370.54 × 168.92
  4. Step 4: Simplify right side
    268.42x = 62,592.22
  5. Step 5: Solve for x
    x = 62,592.22/268.42
  6. Step 6: Final answer
    x = 233.19

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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.