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Finding the Fourth Proportional to 236,404.20, 354,606.30 and 231,738.60

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Solution

The fourth proportional to 236,404.20, 354,606.30 and 231,738.60 is: 347,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,404.20 : 354,606.30 = 231,738.60 : x
  2. Step 2: Convert to fraction form
    236,404.20/354,606.30 = 231,738.60/x
  3. Step 3: Cross multiply
    236,404.20x = 354,606.30 × 231,738.60
  4. Step 4: Simplify right side
    236,404.20x = 82,175,967,513.18
  5. Step 5: Solve for x
    x = 82,175,967,513.18/236,404.20
  6. Step 6: Final answer
    x = 347,607.90

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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.