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Finding the Fourth Proportional to 90,505.44, 135,811.04 and 37,910.48

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Solution

The fourth proportional to 90,505.44, 135,811.04 and 37,910.48 is: 56,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,505.44 : 135,811.04 = 37,910.48 : x
  2. Step 2: Convert to fraction form
    90,505.44/135,811.04 = 37,910.48/x
  3. Step 3: Cross multiply
    90,505.44x = 135,811.04 × 37,910.48
  4. Step 4: Simplify right side
    90,505.44x = 5,148,661,715.70
  5. Step 5: Solve for x
    x = 5,148,661,715.70/90,505.44
  6. Step 6: Final answer
    x = 56,887.87

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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.