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Finding the Fourth Proportional to 352.29, 528.16 and 178.77

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Solution

The fourth proportional to 352.29, 528.16 and 178.77 is: 268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.29 : 528.16 = 178.77 : x
  2. Step 2: Convert to fraction form
    352.29/528.16 = 178.77/x
  3. Step 3: Cross multiply
    352.29x = 528.16 × 178.77
  4. Step 4: Simplify right side
    352.29x = 94,416.08
  5. Step 5: Solve for x
    x = 94,416.08/352.29
  6. Step 6: Final answer
    x = 268.01

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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.