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Finding the Fourth Proportional to 352.53, 528.86 and 109.08

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Solution

The fourth proportional to 352.53, 528.86 and 109.08 is: 163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.53 : 528.86 = 109.08 : x
  2. Step 2: Convert to fraction form
    352.53/528.86 = 109.08/x
  3. Step 3: Cross multiply
    352.53x = 528.86 × 109.08
  4. Step 4: Simplify right side
    352.53x = 57,687.50
  5. Step 5: Solve for x
    x = 57,687.50/352.53
  6. Step 6: Final answer
    x = 163.64

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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.