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Finding the Fourth Proportional to 188,912.67, 260,699.48 and 104,029.73

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Solution

The fourth proportional to 188,912.67, 260,699.48 and 104,029.73 is: 143,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,912.67 : 260,699.48 = 104,029.73 : x
  2. Step 2: Convert to fraction form
    188,912.67/260,699.48 = 104,029.73/x
  3. Step 3: Cross multiply
    188,912.67x = 260,699.48 × 104,029.73
  4. Step 4: Simplify right side
    188,912.67x = 27,120,496,515.54
  5. Step 5: Solve for x
    x = 27,120,496,515.54/188,912.67
  6. Step 6: Final answer
    x = 143,561.02

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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.