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Finding the Fourth Proportional to 89,958.80, 134,914.68 and 26,761.92

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Solution

The fourth proportional to 89,958.80, 134,914.68 and 26,761.92 is: 40,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,958.80 : 134,914.68 = 26,761.92 : x
  2. Step 2: Convert to fraction form
    89,958.80/134,914.68 = 26,761.92/x
  3. Step 3: Cross multiply
    89,958.80x = 134,914.68 × 26,761.92
  4. Step 4: Simplify right side
    89,958.80x = 3,610,575,872.99
  5. Step 5: Solve for x
    x = 3,610,575,872.99/89,958.80
  6. Step 6: Final answer
    x = 40,135.88

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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.