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Finding the Fourth Proportional to 159,552.33, 220,186.83 and 87,936.97

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Solution

The fourth proportional to 159,552.33, 220,186.83 and 87,936.97 is: 121,355.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,552.33 : 220,186.83 = 87,936.97 : x
  2. Step 2: Convert to fraction form
    159,552.33/220,186.83 = 87,936.97/x
  3. Step 3: Cross multiply
    159,552.33x = 220,186.83 × 87,936.97
  4. Step 4: Simplify right side
    159,552.33x = 19,362,562,664.11
  5. Step 5: Solve for x
    x = 19,362,562,664.11/159,552.33
  6. Step 6: Final answer
    x = 121,355.56

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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.