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Finding the Fourth Proportional to 159,993.36, 220,773.60 and 88,369.92

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Solution

The fourth proportional to 159,993.36, 220,773.60 and 88,369.92 is: 121,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,993.36 : 220,773.60 = 88,369.92 : x
  2. Step 2: Convert to fraction form
    159,993.36/220,773.60 = 88,369.92/x
  3. Step 3: Cross multiply
    159,993.36x = 220,773.60 × 88,369.92
  4. Step 4: Simplify right side
    159,993.36x = 19,509,745,370.11
  5. Step 5: Solve for x
    x = 19,509,745,370.11/159,993.36
  6. Step 6: Final answer
    x = 121,940.97

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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.