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Finding the Fourth Proportional to 352.37, 528.56 and 157.33

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Solution

The fourth proportional to 352.37, 528.56 and 157.33 is: 235.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.37 : 528.56 = 157.33 : x
  2. Step 2: Convert to fraction form
    352.37/528.56 = 157.33/x
  3. Step 3: Cross multiply
    352.37x = 528.56 × 157.33
  4. Step 4: Simplify right side
    352.37x = 83,156.24
  5. Step 5: Solve for x
    x = 83,156.24/352.37
  6. Step 6: Final answer
    x = 235.99

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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.