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Finding the Fourth Proportional to 79,639.56, 119,463.12 and 35,266.68

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Solution

The fourth proportional to 79,639.56, 119,463.12 and 35,266.68 is: 52,901.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,639.56 : 119,463.12 = 35,266.68 : x
  2. Step 2: Convert to fraction form
    79,639.56/119,463.12 = 35,266.68/x
  3. Step 3: Cross multiply
    79,639.56x = 119,463.12 × 35,266.68
  4. Step 4: Simplify right side
    79,639.56x = 4,213,067,624.84
  5. Step 5: Solve for x
    x = 4,213,067,624.84/79,639.56
  6. Step 6: Final answer
    x = 52,901.69

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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.