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Finding the Fourth Proportional to 167,620, 251,388.56 and 100,171.36

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Solution

The fourth proportional to 167,620, 251,388.56 and 100,171.36 is: 150,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,620 : 251,388.56 = 100,171.36 : x
  2. Step 2: Convert to fraction form
    167,620/251,388.56 = 100,171.36/x
  3. Step 3: Cross multiply
    167,620x = 251,388.56 × 100,171.36
  4. Step 4: Simplify right side
    167,620x = 25,181,933,943.64
  5. Step 5: Solve for x
    x = 25,181,933,943.64/167,620
  6. Step 6: Final answer
    x = 150,232.28

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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.