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Finding the Fourth Proportional to 174.20, 260.60 and 107.16

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Solution

The fourth proportional to 174.20, 260.60 and 107.16 is: 160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.20 : 260.60 = 107.16 : x
  2. Step 2: Convert to fraction form
    174.20/260.60 = 107.16/x
  3. Step 3: Cross multiply
    174.20x = 260.60 × 107.16
  4. Step 4: Simplify right side
    174.20x = 27,925.90
  5. Step 5: Solve for x
    x = 27,925.90/174.20
  6. Step 6: Final answer
    x = 160.31

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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.