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Finding the Fourth Proportional to 73,076.68, 109,626.48 and 30,956.86

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Solution

The fourth proportional to 73,076.68, 109,626.48 and 30,956.86 is: 46,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,076.68 : 109,626.48 = 30,956.86 : x
  2. Step 2: Convert to fraction form
    73,076.68/109,626.48 = 30,956.86/x
  3. Step 3: Cross multiply
    73,076.68x = 109,626.48 × 30,956.86
  4. Step 4: Simplify right side
    73,076.68x = 3,393,691,593.65
  5. Step 5: Solve for x
    x = 3,393,691,593.65/73,076.68
  6. Step 6: Final answer
    x = 46,440.14

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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.