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Finding the Fourth Proportional to 339,257.87, 508,111.73 and 161,889.44

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Solution

The fourth proportional to 339,257.87, 508,111.73 and 161,889.44 is: 242,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,257.87 : 508,111.73 = 161,889.44 : x
  2. Step 2: Convert to fraction form
    339,257.87/508,111.73 = 161,889.44/x
  3. Step 3: Cross multiply
    339,257.87x = 508,111.73 × 161,889.44
  4. Step 4: Simplify right side
    339,257.87x = 82,257,921,291.30
  5. Step 5: Solve for x
    x = 82,257,921,291.30/339,257.87
  6. Step 6: Final answer
    x = 242,464.30

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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.