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Finding the Fourth Proportional to 207,358.44, 311,003.10 and 67,096.68

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Solution

The fourth proportional to 207,358.44, 311,003.10 and 67,096.68 is: 100,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,358.44 : 311,003.10 = 67,096.68 : x
  2. Step 2: Convert to fraction form
    207,358.44/311,003.10 = 67,096.68/x
  3. Step 3: Cross multiply
    207,358.44x = 311,003.10 × 67,096.68
  4. Step 4: Simplify right side
    207,358.44x = 20,867,275,479.71
  5. Step 5: Solve for x
    x = 20,867,275,479.71/207,358.44
  6. Step 6: Final answer
    x = 100,633.84

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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.