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Finding the Fourth Proportional to 263,804.75, 395,826.51 and 103,836.64

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Solution

The fourth proportional to 263,804.75, 395,826.51 and 103,836.64 is: 155,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,804.75 : 395,826.51 = 103,836.64 : x
  2. Step 2: Convert to fraction form
    263,804.75/395,826.51 = 103,836.64/x
  3. Step 3: Cross multiply
    263,804.75x = 395,826.51 × 103,836.64
  4. Step 4: Simplify right side
    263,804.75x = 41,101,294,821.33
  5. Step 5: Solve for x
    x = 41,101,294,821.33/263,804.75
  6. Step 6: Final answer
    x = 155,801.95

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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.