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Finding the Fourth Proportional to 73,099.81, 109,797.12 and 43,575.31

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Solution

The fourth proportional to 73,099.81, 109,797.12 and 43,575.31 is: 65,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,099.81 : 109,797.12 = 43,575.31 : x
  2. Step 2: Convert to fraction form
    73,099.81/109,797.12 = 43,575.31/x
  3. Step 3: Cross multiply
    73,099.81x = 109,797.12 × 43,575.31
  4. Step 4: Simplify right side
    73,099.81x = 4,784,443,541.11
  5. Step 5: Solve for x
    x = 4,784,443,541.11/73,099.81
  6. Step 6: Final answer
    x = 65,450.83

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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.