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Finding the Fourth Proportional to 393,255.20, 590,028.60 and 156,767.60

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Solution

The fourth proportional to 393,255.20, 590,028.60 and 156,767.60 is: 235,209.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,255.20 : 590,028.60 = 156,767.60 : x
  2. Step 2: Convert to fraction form
    393,255.20/590,028.60 = 156,767.60/x
  3. Step 3: Cross multiply
    393,255.20x = 590,028.60 × 156,767.60
  4. Step 4: Simplify right side
    393,255.20x = 92,497,367,553.36
  5. Step 5: Solve for x
    x = 92,497,367,553.36/393,255.20
  6. Step 6: Final answer
    x = 235,209.52

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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.