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Finding the Fourth Proportional to 393,254.20, 590,027.10 and 156,766.60

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Solution

The fourth proportional to 393,254.20, 590,027.10 and 156,766.60 is: 235,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,254.20 : 590,027.10 = 156,766.60 : x
  2. Step 2: Convert to fraction form
    393,254.20/590,027.10 = 156,766.60/x
  3. Step 3: Cross multiply
    393,254.20x = 590,027.10 × 156,766.60
  4. Step 4: Simplify right side
    393,254.20x = 92,496,542,374.86
  5. Step 5: Solve for x
    x = 92,496,542,374.86/393,254.20
  6. Step 6: Final answer
    x = 235,208.02

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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.