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Finding the Fourth Proportional to 162,053.28, 243,105.84 and 68,559.84

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Solution

The fourth proportional to 162,053.28, 243,105.84 and 68,559.84 is: 102,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,053.28 : 243,105.84 = 68,559.84 : x
  2. Step 2: Convert to fraction form
    162,053.28/243,105.84 = 68,559.84/x
  3. Step 3: Cross multiply
    162,053.28x = 243,105.84 × 68,559.84
  4. Step 4: Simplify right side
    162,053.28x = 16,667,297,493.47
  5. Step 5: Solve for x
    x = 16,667,297,493.47/162,053.28
  6. Step 6: Final answer
    x = 102,850.73

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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.