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Finding the Fourth Proportional to 174, 260.40 and 113.04

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Solution

The fourth proportional to 174, 260.40 and 113.04 is: 169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    174 : 260.40 = 113.04 : x
  2. Step 2: Convert to fraction form
    174/260.40 = 113.04/x
  3. Step 3: Cross multiply
    174x = 260.40 × 113.04
  4. Step 4: Simplify right side
    174x = 29,435.62
  5. Step 5: Solve for x
    x = 29,435.62/174
  6. Step 6: Final answer
    x = 169.17

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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.