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Finding the Fourth Proportional to 79,676.58, 109,951.54 and 43,866.86

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Solution

The fourth proportional to 79,676.58, 109,951.54 and 43,866.86 is: 60,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,676.58 : 109,951.54 = 43,866.86 : x
  2. Step 2: Convert to fraction form
    79,676.58/109,951.54 = 43,866.86/x
  3. Step 3: Cross multiply
    79,676.58x = 109,951.54 × 43,866.86
  4. Step 4: Simplify right side
    79,676.58x = 4,823,228,811.96
  5. Step 5: Solve for x
    x = 4,823,228,811.96/79,676.58
  6. Step 6: Final answer
    x = 60,535.09

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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.