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Finding the Fourth Proportional to 107.27, 160.80 and 46.35

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Solution

The fourth proportional to 107.27, 160.80 and 46.35 is: 69.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.27 : 160.80 = 46.35 : x
  2. Step 2: Convert to fraction form
    107.27/160.80 = 46.35/x
  3. Step 3: Cross multiply
    107.27x = 160.80 × 46.35
  4. Step 4: Simplify right side
    107.27x = 7,453.08
  5. Step 5: Solve for x
    x = 7,453.08/107.27
  6. Step 6: Final answer
    x = 69.48

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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.