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Finding the Fourth Proportional to 79,005.67, 109,027.86 and 43,195.97

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Solution

The fourth proportional to 79,005.67, 109,027.86 and 43,195.97 is: 59,610.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,005.67 : 109,027.86 = 43,195.97 : x
  2. Step 2: Convert to fraction form
    79,005.67/109,027.86 = 43,195.97/x
  3. Step 3: Cross multiply
    79,005.67x = 109,027.86 × 43,195.97
  4. Step 4: Simplify right side
    79,005.67x = 4,709,564,169.72
  5. Step 5: Solve for x
    x = 4,709,564,169.72/79,005.67
  6. Step 6: Final answer
    x = 59,610.46

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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.