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Finding the Fourth Proportional to 79,939.62, 119,956.95 and 35,568.90

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Solution

The fourth proportional to 79,939.62, 119,956.95 and 35,568.90 is: 53,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,939.62 : 119,956.95 = 35,568.90 : x
  2. Step 2: Convert to fraction form
    79,939.62/119,956.95 = 35,568.90/x
  3. Step 3: Cross multiply
    79,939.62x = 119,956.95 × 35,568.90
  4. Step 4: Simplify right side
    79,939.62x = 4,266,736,758.86
  5. Step 5: Solve for x
    x = 4,266,736,758.86/79,939.62
  6. Step 6: Final answer
    x = 53,374.49

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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.