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Finding the Fourth Proportional to 263,033.70, 394,712.55 and 113,345.70

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Solution

The fourth proportional to 263,033.70, 394,712.55 and 113,345.70 is: 170,088.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,033.70 : 394,712.55 = 113,345.70 : x
  2. Step 2: Convert to fraction form
    263,033.70/394,712.55 = 113,345.70/x
  3. Step 3: Cross multiply
    263,033.70x = 394,712.55 × 113,345.70
  4. Step 4: Simplify right side
    263,033.70x = 44,738,970,278.54
  5. Step 5: Solve for x
    x = 44,738,970,278.54/263,033.70
  6. Step 6: Final answer
    x = 170,088.36

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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.