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Finding the Fourth Proportional to 355.60, 533.49 and 112.16

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Solution

The fourth proportional to 355.60, 533.49 and 112.16 is: 168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.60 : 533.49 = 112.16 : x
  2. Step 2: Convert to fraction form
    355.60/533.49 = 112.16/x
  3. Step 3: Cross multiply
    355.60x = 533.49 × 112.16
  4. Step 4: Simplify right side
    355.60x = 59,836.24
  5. Step 5: Solve for x
    x = 59,836.24/355.60
  6. Step 6: Final answer
    x = 168.27

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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.