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Finding the Fourth Proportional to 73,357.10, 110,035.65 and 68,399.90

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Solution

The fourth proportional to 73,357.10, 110,035.65 and 68,399.90 is: 102,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,357.10 : 110,035.65 = 68,399.90 : x
  2. Step 2: Convert to fraction form
    73,357.10/110,035.65 = 68,399.90/x
  3. Step 3: Cross multiply
    73,357.10x = 110,035.65 × 68,399.90
  4. Step 4: Simplify right side
    73,357.10x = 7,526,427,456.44
  5. Step 5: Solve for x
    x = 7,526,427,456.44/73,357.10
  6. Step 6: Final answer
    x = 102,599.85

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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.