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Finding the Fourth Proportional to 79,671.05, 119,419.08 and 27,040.89

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Solution

The fourth proportional to 79,671.05, 119,419.08 and 27,040.89 is: 40,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,671.05 : 119,419.08 = 27,040.89 : x
  2. Step 2: Convert to fraction form
    79,671.05/119,419.08 = 27,040.89/x
  3. Step 3: Cross multiply
    79,671.05x = 119,419.08 × 27,040.89
  4. Step 4: Simplify right side
    79,671.05x = 3,229,198,206.18
  5. Step 5: Solve for x
    x = 3,229,198,206.18/79,671.05
  6. Step 6: Final answer
    x = 40,531.64

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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.