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Finding the Fourth Proportional to 73,626.38, 110,221.38 and 45,455.86

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Solution

The fourth proportional to 73,626.38, 110,221.38 and 45,455.86 is: 68,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,626.38 : 110,221.38 = 45,455.86 : x
  2. Step 2: Convert to fraction form
    73,626.38/110,221.38 = 45,455.86/x
  3. Step 3: Cross multiply
    73,626.38x = 110,221.38 × 45,455.86
  4. Step 4: Simplify right side
    73,626.38x = 5,010,207,618.29
  5. Step 5: Solve for x
    x = 5,010,207,618.29/73,626.38
  6. Step 6: Final answer
    x = 68,049.08

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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.