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Finding the Fourth Proportional to 352.98, 529.26 and 157.98

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Solution

The fourth proportional to 352.98, 529.26 and 157.98 is: 236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.98 : 529.26 = 157.98 : x
  2. Step 2: Convert to fraction form
    352.98/529.26 = 157.98/x
  3. Step 3: Cross multiply
    352.98x = 529.26 × 157.98
  4. Step 4: Simplify right side
    352.98x = 83,612.49
  5. Step 5: Solve for x
    x = 83,612.49/352.98
  6. Step 6: Final answer
    x = 236.88

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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.