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Finding the Fourth Proportional to 175.60, 263.40 and 167.20

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Solution

The fourth proportional to 175.60, 263.40 and 167.20 is: 250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.60 : 263.40 = 167.20 : x
  2. Step 2: Convert to fraction form
    175.60/263.40 = 167.20/x
  3. Step 3: Cross multiply
    175.60x = 263.40 × 167.20
  4. Step 4: Simplify right side
    175.60x = 44,040.48
  5. Step 5: Solve for x
    x = 44,040.48/175.60
  6. Step 6: Final answer
    x = 250.80

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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.