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Finding the Fourth Proportional to 352.74, 529 and 136.26

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Solution

The fourth proportional to 352.74, 529 and 136.26 is: 204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.74 : 529 = 136.26 : x
  2. Step 2: Convert to fraction form
    352.74/529 = 136.26/x
  3. Step 3: Cross multiply
    352.74x = 529 × 136.26
  4. Step 4: Simplify right side
    352.74x = 72,081.54
  5. Step 5: Solve for x
    x = 72,081.54/352.74
  6. Step 6: Final answer
    x = 204.35

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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.