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Finding the Fourth Proportional to 352.49, 529.00 and 147.22

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Solution

The fourth proportional to 352.49, 529.00 and 147.22 is: 220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.49 : 529.00 = 147.22 : x
  2. Step 2: Convert to fraction form
    352.49/529.00 = 147.22/x
  3. Step 3: Cross multiply
    352.49x = 529.00 × 147.22
  4. Step 4: Simplify right side
    352.49x = 77,877.69
  5. Step 5: Solve for x
    x = 77,877.69/352.49
  6. Step 6: Final answer
    x = 220.94

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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.