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Finding the Fourth Proportional to 419,776.64, 629,763.39 and 167,072.44

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Solution

The fourth proportional to 419,776.64, 629,763.39 and 167,072.44 is: 250,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,776.64 : 629,763.39 = 167,072.44 : x
  2. Step 2: Convert to fraction form
    419,776.64/629,763.39 = 167,072.44/x
  3. Step 3: Cross multiply
    419,776.64x = 629,763.39 × 167,072.44
  4. Step 4: Simplify right side
    419,776.64x = 105,216,105,796.37
  5. Step 5: Solve for x
    x = 105,216,105,796.37/419,776.64
  6. Step 6: Final answer
    x = 250,647.83

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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.