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Finding the Fourth Proportional to 61,163.10, 91,744.65 and 44,487.90

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Solution

The fourth proportional to 61,163.10, 91,744.65 and 44,487.90 is: 66,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,163.10 : 91,744.65 = 44,487.90 : x
  2. Step 2: Convert to fraction form
    61,163.10/91,744.65 = 44,487.90/x
  3. Step 3: Cross multiply
    61,163.10x = 91,744.65 × 44,487.90
  4. Step 4: Simplify right side
    61,163.10x = 4,081,526,814.74
  5. Step 5: Solve for x
    x = 4,081,526,814.74/61,163.10
  6. Step 6: Final answer
    x = 66,731.85

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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.