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Finding the Fourth Proportional to 251,605.54, 347,189.73 and 149,611.29

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Solution

The fourth proportional to 251,605.54, 347,189.73 and 149,611.29 is: 206,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,605.54 : 347,189.73 = 149,611.29 : x
  2. Step 2: Convert to fraction form
    251,605.54/347,189.73 = 149,611.29/x
  3. Step 3: Cross multiply
    251,605.54x = 347,189.73 × 149,611.29
  4. Step 4: Simplify right side
    251,605.54x = 51,943,504,184.48
  5. Step 5: Solve for x
    x = 51,943,504,184.48/251,605.54
  6. Step 6: Final answer
    x = 206,448.17

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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.