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Finding the Fourth Proportional to 99,591.37, 149,431.19 and 52,195.19

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Solution

The fourth proportional to 99,591.37, 149,431.19 and 52,195.19 is: 78,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,591.37 : 149,431.19 = 52,195.19 : x
  2. Step 2: Convert to fraction form
    99,591.37/149,431.19 = 52,195.19/x
  3. Step 3: Cross multiply
    99,591.37x = 149,431.19 × 52,195.19
  4. Step 4: Simplify right side
    99,591.37x = 7,799,589,353.98
  5. Step 5: Solve for x
    x = 7,799,589,353.98/99,591.37
  6. Step 6: Final answer
    x = 78,315.92

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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.