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Finding the Fourth Proportional to 79,913.79, 119,832.39 and 37,758.78

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Solution

The fourth proportional to 79,913.79, 119,832.39 and 37,758.78 is: 56,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,913.79 : 119,832.39 = 37,758.78 : x
  2. Step 2: Convert to fraction form
    79,913.79/119,832.39 = 37,758.78/x
  3. Step 3: Cross multiply
    79,913.79x = 119,832.39 × 37,758.78
  4. Step 4: Simplify right side
    79,913.79x = 4,524,724,850.88
  5. Step 5: Solve for x
    x = 4,524,724,850.88/79,913.79
  6. Step 6: Final answer
    x = 56,620.08

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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.