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Finding the Fourth Proportional to 263.54, 363.60 and 158.60

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Solution

The fourth proportional to 263.54, 363.60 and 158.60 is: 218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.54 : 363.60 = 158.60 : x
  2. Step 2: Convert to fraction form
    263.54/363.60 = 158.60/x
  3. Step 3: Cross multiply
    263.54x = 363.60 × 158.60
  4. Step 4: Simplify right side
    263.54x = 57,666.96
  5. Step 5: Solve for x
    x = 57,666.96/263.54
  6. Step 6: Final answer
    x = 218.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.