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Finding the Fourth Proportional to 171,083.60, 236,067 and 99,447.20

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Solution

The fourth proportional to 171,083.60, 236,067 and 99,447.20 is: 137,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,083.60 : 236,067 = 99,447.20 : x
  2. Step 2: Convert to fraction form
    171,083.60/236,067 = 99,447.20/x
  3. Step 3: Cross multiply
    171,083.60x = 236,067 × 99,447.20
  4. Step 4: Simplify right side
    171,083.60x = 23,476,202,162.40
  5. Step 5: Solve for x
    x = 23,476,202,162.40/171,083.60
  6. Step 6: Final answer
    x = 137,220.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.