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Finding the Fourth Proportional to 79,619.50, 119,060.14 and 61,646.44

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Solution

The fourth proportional to 79,619.50, 119,060.14 and 61,646.44 is: 92,183.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,619.50 : 119,060.14 = 61,646.44 : x
  2. Step 2: Convert to fraction form
    79,619.50/119,060.14 = 61,646.44/x
  3. Step 3: Cross multiply
    79,619.50x = 119,060.14 × 61,646.44
  4. Step 4: Simplify right side
    79,619.50x = 7,339,633,776.90
  5. Step 5: Solve for x
    x = 7,339,633,776.90/79,619.50
  6. Step 6: Final answer
    x = 92,183.87

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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.