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Finding the Fourth Proportional to 67,348.38, 92,945.43 and 39,063.90

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Solution

The fourth proportional to 67,348.38, 92,945.43 and 39,063.90 is: 53,910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,348.38 : 92,945.43 = 39,063.90 : x
  2. Step 2: Convert to fraction form
    67,348.38/92,945.43 = 39,063.90/x
  3. Step 3: Cross multiply
    67,348.38x = 92,945.43 × 39,063.90
  4. Step 4: Simplify right side
    67,348.38x = 3,630,810,982.98
  5. Step 5: Solve for x
    x = 3,630,810,982.98/67,348.38
  6. Step 6: Final answer
    x = 53,910.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.