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Finding the Fourth Proportional to 263,437.80, 394,873.31 and 113,748.59

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Solution

The fourth proportional to 263,437.80, 394,873.31 and 113,748.59 is: 170,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,437.80 : 394,873.31 = 113,748.59 : x
  2. Step 2: Convert to fraction form
    263,437.80/394,873.31 = 113,748.59/x
  3. Step 3: Cross multiply
    263,437.80x = 394,873.31 × 113,748.59
  4. Step 4: Simplify right side
    263,437.80x = 44,916,279,698.02
  5. Step 5: Solve for x
    x = 44,916,279,698.02/263,437.80
  6. Step 6: Final answer
    x = 170,500.51

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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.