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Finding the Fourth Proportional to 175.18, 262.92 and 161.50

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Solution

The fourth proportional to 175.18, 262.92 and 161.50 is: 242.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.18 : 262.92 = 161.50 : x
  2. Step 2: Convert to fraction form
    175.18/262.92 = 161.50/x
  3. Step 3: Cross multiply
    175.18x = 262.92 × 161.50
  4. Step 4: Simplify right side
    175.18x = 42,461.58
  5. Step 5: Solve for x
    x = 42,461.58/175.18
  6. Step 6: Final answer
    x = 242.39

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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.