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Finding the Fourth Proportional to 339,104.36, 508,289.82 and 149,395.56

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Solution

The fourth proportional to 339,104.36, 508,289.82 and 149,395.56 is: 223,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,104.36 : 508,289.82 = 149,395.56 : x
  2. Step 2: Convert to fraction form
    339,104.36/508,289.82 = 149,395.56/x
  3. Step 3: Cross multiply
    339,104.36x = 508,289.82 × 149,395.56
  4. Step 4: Simplify right side
    339,104.36x = 75,936,242,301.20
  5. Step 5: Solve for x
    x = 75,936,242,301.20/339,104.36
  6. Step 6: Final answer
    x = 223,931.78

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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.