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Finding the Fourth Proportional to 419,860.26, 629,889.62 and 167,155.25

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Solution

The fourth proportional to 419,860.26, 629,889.62 and 167,155.25 is: 250,772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,860.26 : 629,889.62 = 167,155.25 : x
  2. Step 2: Convert to fraction form
    419,860.26/629,889.62 = 167,155.25/x
  3. Step 3: Cross multiply
    419,860.26x = 629,889.62 × 167,155.25
  4. Step 4: Simplify right side
    419,860.26x = 105,289,352,918.28
  5. Step 5: Solve for x
    x = 105,289,352,918.28/419,860.26
  6. Step 6: Final answer
    x = 250,772.37

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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.