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Finding the Fourth Proportional to 79,174.82, 118,749.87 and 29,243.58

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Solution

The fourth proportional to 79,174.82, 118,749.87 and 29,243.58 is: 43,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,174.82 : 118,749.87 = 29,243.58 : x
  2. Step 2: Convert to fraction form
    79,174.82/118,749.87 = 29,243.58/x
  3. Step 3: Cross multiply
    79,174.82x = 118,749.87 × 29,243.58
  4. Step 4: Simplify right side
    79,174.82x = 3,472,671,323.33
  5. Step 5: Solve for x
    x = 3,472,671,323.33/79,174.82
  6. Step 6: Final answer
    x = 43,860.81

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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.