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Finding the Fourth Proportional to 188,287.12, 259,833.38 and 107,734.44

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Solution

The fourth proportional to 188,287.12, 259,833.38 and 107,734.44 is: 148,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,287.12 : 259,833.38 = 107,734.44 : x
  2. Step 2: Convert to fraction form
    188,287.12/259,833.38 = 107,734.44/x
  3. Step 3: Cross multiply
    188,287.12x = 259,833.38 × 107,734.44
  4. Step 4: Simplify right side
    188,287.12x = 27,993,003,687.61
  5. Step 5: Solve for x
    x = 27,993,003,687.61/188,287.12
  6. Step 6: Final answer
    x = 148,671.90

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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.