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Finding the Fourth Proportional to 339,712.17, 509,707.98 and 150,072.54

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Solution

The fourth proportional to 339,712.17, 509,707.98 and 150,072.54 is: 225,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,712.17 : 509,707.98 = 150,072.54 : x
  2. Step 2: Convert to fraction form
    339,712.17/509,707.98 = 150,072.54/x
  3. Step 3: Cross multiply
    339,712.17x = 509,707.98 × 150,072.54
  4. Step 4: Simplify right side
    339,712.17x = 76,493,171,216.87
  5. Step 5: Solve for x
    x = 76,493,171,216.87/339,712.17
  6. Step 6: Final answer
    x = 225,170.54

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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.