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Finding the Fourth Proportional to 73,159.46, 109,739.19 and 20,568.94

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Solution

The fourth proportional to 73,159.46, 109,739.19 and 20,568.94 is: 30,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,159.46 : 109,739.19 = 20,568.94 : x
  2. Step 2: Convert to fraction form
    73,159.46/109,739.19 = 20,568.94/x
  3. Step 3: Cross multiply
    73,159.46x = 109,739.19 × 20,568.94
  4. Step 4: Simplify right side
    73,159.46x = 2,257,218,814.76
  5. Step 5: Solve for x
    x = 2,257,218,814.76/73,159.46
  6. Step 6: Final answer
    x = 30,853.41

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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.