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Finding the Fourth Proportional to 110.36, 165.60 and 46.28

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Solution

The fourth proportional to 110.36, 165.60 and 46.28 is: 69.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.36 : 165.60 = 46.28 : x
  2. Step 2: Convert to fraction form
    110.36/165.60 = 46.28/x
  3. Step 3: Cross multiply
    110.36x = 165.60 × 46.28
  4. Step 4: Simplify right side
    110.36x = 7,663.97
  5. Step 5: Solve for x
    x = 7,663.97/110.36
  6. Step 6: Final answer
    x = 69.45

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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.