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Finding the Fourth Proportional to 110.53, 165.73 and 56.46

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Solution

The fourth proportional to 110.53, 165.73 and 56.46 is: 84.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.53 : 165.73 = 56.46 : x
  2. Step 2: Convert to fraction form
    110.53/165.73 = 56.46/x
  3. Step 3: Cross multiply
    110.53x = 165.73 × 56.46
  4. Step 4: Simplify right side
    110.53x = 9,357.39
  5. Step 5: Solve for x
    x = 9,357.39/110.53
  6. Step 6: Final answer
    x = 84.66

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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.