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Finding the Fourth Proportional to 101,331.38, 152,027.82 and 53,938.40

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Solution

The fourth proportional to 101,331.38, 152,027.82 and 53,938.40 is: 80,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,331.38 : 152,027.82 = 53,938.40 : x
  2. Step 2: Convert to fraction form
    101,331.38/152,027.82 = 53,938.40/x
  3. Step 3: Cross multiply
    101,331.38x = 152,027.82 × 53,938.40
  4. Step 4: Simplify right side
    101,331.38x = 8,200,137,366.29
  5. Step 5: Solve for x
    x = 8,200,137,366.29/101,331.38
  6. Step 6: Final answer
    x = 80,923.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.