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Finding the Fourth Proportional to 73,720.10, 110,252.10 and 61,910.30

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Solution

The fourth proportional to 73,720.10, 110,252.10 and 61,910.30 is: 92,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,720.10 : 110,252.10 = 61,910.30 : x
  2. Step 2: Convert to fraction form
    73,720.10/110,252.10 = 61,910.30/x
  3. Step 3: Cross multiply
    73,720.10x = 110,252.10 × 61,910.30
  4. Step 4: Simplify right side
    73,720.10x = 6,825,740,586.63
  5. Step 5: Solve for x
    x = 6,825,740,586.63/73,720.10
  6. Step 6: Final answer
    x = 92,589.95

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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.