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Finding the Fourth Proportional to 395.68, 593.52 and 107.16

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Solution

The fourth proportional to 395.68, 593.52 and 107.16 is: 160.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.68 : 593.52 = 107.16 : x
  2. Step 2: Convert to fraction form
    395.68/593.52 = 107.16/x
  3. Step 3: Cross multiply
    395.68x = 593.52 × 107.16
  4. Step 4: Simplify right side
    395.68x = 63,601.60
  5. Step 5: Solve for x
    x = 63,601.60/395.68
  6. Step 6: Final answer
    x = 160.74

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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.