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Finding the Fourth Proportional to 109.64, 164.52 and 44.66

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Solution

The fourth proportional to 109.64, 164.52 and 44.66 is: 67.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.64 : 164.52 = 44.66 : x
  2. Step 2: Convert to fraction form
    109.64/164.52 = 44.66/x
  3. Step 3: Cross multiply
    109.64x = 164.52 × 44.66
  4. Step 4: Simplify right side
    109.64x = 7,347.46
  5. Step 5: Solve for x
    x = 7,347.46/109.64
  6. Step 6: Final answer
    x = 67.01

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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.