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Finding the Fourth Proportional to 352.51, 528.81 and 136.24

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Solution

The fourth proportional to 352.51, 528.81 and 136.24 is: 204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.51 : 528.81 = 136.24 : x
  2. Step 2: Convert to fraction form
    352.51/528.81 = 136.24/x
  3. Step 3: Cross multiply
    352.51x = 528.81 × 136.24
  4. Step 4: Simplify right side
    352.51x = 72,045.07
  5. Step 5: Solve for x
    x = 72,045.07/352.51
  6. Step 6: Final answer
    x = 204.38

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