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Finding the Fourth Proportional to 159,880.96, 220,667.96 and 91,945.44

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Solution

The fourth proportional to 159,880.96, 220,667.96 and 91,945.44 is: 126,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,880.96 : 220,667.96 = 91,945.44 : x
  2. Step 2: Convert to fraction form
    159,880.96/220,667.96 = 91,945.44/x
  3. Step 3: Cross multiply
    159,880.96x = 220,667.96 × 91,945.44
  4. Step 4: Simplify right side
    159,880.96x = 20,289,412,676.10
  5. Step 5: Solve for x
    x = 20,289,412,676.10/159,880.96
  6. Step 6: Final answer
    x = 126,903.25

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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.