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Finding the Fourth Proportional to 159,170.00, 219,669.14 and 91,208.97

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Solution

The fourth proportional to 159,170.00, 219,669.14 and 91,208.97 is: 125,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,170.00 : 219,669.14 = 91,208.97 : x
  2. Step 2: Convert to fraction form
    159,170.00/219,669.14 = 91,208.97/x
  3. Step 3: Cross multiply
    159,170.00x = 219,669.14 × 91,208.97
  4. Step 4: Simplify right side
    159,170.00x = 20,035,795,544.14
  5. Step 5: Solve for x
    x = 20,035,795,544.14/159,170.00
  6. Step 6: Final answer
    x = 125,876.71

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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.