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Finding the Fourth Proportional to 339,992.79, 509,933.57 and 100,050.54

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Solution

The fourth proportional to 339,992.79, 509,933.57 and 100,050.54 is: 150,059.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,992.79 : 509,933.57 = 100,050.54 : x
  2. Step 2: Convert to fraction form
    339,992.79/509,933.57 = 100,050.54/x
  3. Step 3: Cross multiply
    339,992.79x = 509,933.57 × 100,050.54
  4. Step 4: Simplify right side
    339,992.79x = 51,019,128,542.38
  5. Step 5: Solve for x
    x = 51,019,128,542.38/339,992.79
  6. Step 6: Final answer
    x = 150,059.44

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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.