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Finding the Fourth Proportional to 79,086.36, 118,654.44 and 34,750.40

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Solution

The fourth proportional to 79,086.36, 118,654.44 and 34,750.40 is: 52,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,086.36 : 118,654.44 = 34,750.40 : x
  2. Step 2: Convert to fraction form
    79,086.36/118,654.44 = 34,750.40/x
  3. Step 3: Cross multiply
    79,086.36x = 118,654.44 × 34,750.40
  4. Step 4: Simplify right side
    79,086.36x = 4,123,289,251.78
  5. Step 5: Solve for x
    x = 4,123,289,251.78/79,086.36
  6. Step 6: Final answer
    x = 52,136.54

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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.