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Finding the Fourth Proportional to 339,046.05, 508,245.08 and 125,756.85

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Solution

The fourth proportional to 339,046.05, 508,245.08 and 125,756.85 is: 188,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,046.05 : 508,245.08 = 125,756.85 : x
  2. Step 2: Convert to fraction form
    339,046.05/508,245.08 = 125,756.85/x
  3. Step 3: Cross multiply
    339,046.05x = 508,245.08 × 125,756.85
  4. Step 4: Simplify right side
    339,046.05x = 63,915,299,660.01
  5. Step 5: Solve for x
    x = 63,915,299,660.01/339,046.05
  6. Step 6: Final answer
    x = 188,515.10

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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.