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Finding the Fourth Proportional to 339,172.15, 508,769.64 and 170,600.57

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Solution

The fourth proportional to 339,172.15, 508,769.64 and 170,600.57 is: 255,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,172.15 : 508,769.64 = 170,600.57 : x
  2. Step 2: Convert to fraction form
    339,172.15/508,769.64 = 170,600.57/x
  3. Step 3: Cross multiply
    339,172.15x = 508,769.64 × 170,600.57
  4. Step 4: Simplify right side
    339,172.15x = 86,796,388,038.85
  5. Step 5: Solve for x
    x = 86,796,388,038.85/339,172.15
  6. Step 6: Final answer
    x = 255,906.59

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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.