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Finding the Fourth Proportional to 79,963.38, 119,944.53 and 26,659.44

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Solution

The fourth proportional to 79,963.38, 119,944.53 and 26,659.44 is: 39,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,963.38 : 119,944.53 = 26,659.44 : x
  2. Step 2: Convert to fraction form
    79,963.38/119,944.53 = 26,659.44/x
  3. Step 3: Cross multiply
    79,963.38x = 119,944.53 × 26,659.44
  4. Step 4: Simplify right side
    79,963.38x = 3,197,654,000.86
  5. Step 5: Solve for x
    x = 3,197,654,000.86/79,963.38
  6. Step 6: Final answer
    x = 39,988.98

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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.