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Finding the Fourth Proportional to 110.98, 166.52 and 46.86

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Solution

The fourth proportional to 110.98, 166.52 and 46.86 is: 70.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.98 : 166.52 = 46.86 : x
  2. Step 2: Convert to fraction form
    110.98/166.52 = 46.86/x
  3. Step 3: Cross multiply
    110.98x = 166.52 × 46.86
  4. Step 4: Simplify right side
    110.98x = 7,803.13
  5. Step 5: Solve for x
    x = 7,803.13/110.98
  6. Step 6: Final answer
    x = 70.31

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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.