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Finding the Fourth Proportional to 101,331.88, 152,028.57 and 53,938.90

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Solution

The fourth proportional to 101,331.88, 152,028.57 and 53,938.90 is: 80,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,331.88 : 152,028.57 = 53,938.90 : x
  2. Step 2: Convert to fraction form
    101,331.88/152,028.57 = 53,938.90/x
  3. Step 3: Cross multiply
    101,331.88x = 152,028.57 × 53,938.90
  4. Step 4: Simplify right side
    101,331.88x = 8,200,253,834.37
  5. Step 5: Solve for x
    x = 8,200,253,834.37/101,331.88
  6. Step 6: Final answer
    x = 80,924.72

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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.