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Finding the Fourth Proportional to 144,092.52, 216,138.44 and 80,091.34

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Solution

The fourth proportional to 144,092.52, 216,138.44 and 80,091.34 is: 120,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,092.52 : 216,138.44 = 80,091.34 : x
  2. Step 2: Convert to fraction form
    144,092.52/216,138.44 = 80,091.34/x
  3. Step 3: Cross multiply
    144,092.52x = 216,138.44 × 80,091.34
  4. Step 4: Simplify right side
    144,092.52x = 17,310,816,944.99
  5. Step 5: Solve for x
    x = 17,310,816,944.99/144,092.52
  6. Step 6: Final answer
    x = 120,136.82

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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.