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Finding the Fourth Proportional to 79,383.92, 119,045.88 and 31,982.94

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Solution

The fourth proportional to 79,383.92, 119,045.88 and 31,982.94 is: 47,962.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,383.92 : 119,045.88 = 31,982.94 : x
  2. Step 2: Convert to fraction form
    79,383.92/119,045.88 = 31,982.94/x
  3. Step 3: Cross multiply
    79,383.92x = 119,045.88 × 31,982.94
  4. Step 4: Simplify right side
    79,383.92x = 3,807,437,237.29
  5. Step 5: Solve for x
    x = 3,807,437,237.29/79,383.92
  6. Step 6: Final answer
    x = 47,962.33

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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.