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Finding the Fourth Proportional to 263,890.83, 395,804.66 and 74,365.41

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Solution

The fourth proportional to 263,890.83, 395,804.66 and 74,365.41 is: 111,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,890.83 : 395,804.66 = 74,365.41 : x
  2. Step 2: Convert to fraction form
    263,890.83/395,804.66 = 74,365.41/x
  3. Step 3: Cross multiply
    263,890.83x = 395,804.66 × 74,365.41
  4. Step 4: Simplify right side
    263,890.83x = 29,434,175,448.98
  5. Step 5: Solve for x
    x = 29,434,175,448.98/263,890.83
  6. Step 6: Final answer
    x = 111,539.21

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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.