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Finding the Fourth Proportional to 144.44, 199.26 and 125

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Solution

The fourth proportional to 144.44, 199.26 and 125 is: 172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.44 : 199.26 = 125 : x
  2. Step 2: Convert to fraction form
    144.44/199.26 = 125/x
  3. Step 3: Cross multiply
    144.44x = 199.26 × 125
  4. Step 4: Simplify right side
    144.44x = 24,907.50
  5. Step 5: Solve for x
    x = 24,907.50/144.44
  6. Step 6: Final answer
    x = 172.44

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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.