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Finding the Fourth Proportional to 260.81, 359.93 and 144.38

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Solution

The fourth proportional to 260.81, 359.93 and 144.38 is: 199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.81 : 359.93 = 144.38 : x
  2. Step 2: Convert to fraction form
    260.81/359.93 = 144.38/x
  3. Step 3: Cross multiply
    260.81x = 359.93 × 144.38
  4. Step 4: Simplify right side
    260.81x = 51,964.17
  5. Step 5: Solve for x
    x = 51,964.17/260.81
  6. Step 6: Final answer
    x = 199.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.