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Finding the Fourth Proportional to 268.52, 402.51 and 106.04

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Solution

The fourth proportional to 268.52, 402.51 and 106.04 is: 158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.52 : 402.51 = 106.04 : x
  2. Step 2: Convert to fraction form
    268.52/402.51 = 106.04/x
  3. Step 3: Cross multiply
    268.52x = 402.51 × 106.04
  4. Step 4: Simplify right side
    268.52x = 42,682.16
  5. Step 5: Solve for x
    x = 42,682.16/268.52
  6. Step 6: Final answer
    x = 158.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.