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Finding the Fourth Proportional to 257,080.99, 354,771.95 and 140,793.85

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Solution

The fourth proportional to 257,080.99, 354,771.95 and 140,793.85 is: 194,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,080.99 : 354,771.95 = 140,793.85 : x
  2. Step 2: Convert to fraction form
    257,080.99/354,771.95 = 140,793.85/x
  3. Step 3: Cross multiply
    257,080.99x = 354,771.95 × 140,793.85
  4. Step 4: Simplify right side
    257,080.99x = 49,949,707,121.61
  5. Step 5: Solve for x
    x = 49,949,707,121.61/257,080.99
  6. Step 6: Final answer
    x = 194,295.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.