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Finding the Fourth Proportional to 144,563.78, 199,498.27 and 80,037.48

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Solution

The fourth proportional to 144,563.78, 199,498.27 and 80,037.48 is: 110,451.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,563.78 : 199,498.27 = 80,037.48 : x
  2. Step 2: Convert to fraction form
    144,563.78/199,498.27 = 80,037.48/x
  3. Step 3: Cross multiply
    144,563.78x = 199,498.27 × 80,037.48
  4. Step 4: Simplify right side
    144,563.78x = 15,967,338,795.16
  5. Step 5: Solve for x
    x = 15,967,338,795.16/144,563.78
  6. Step 6: Final answer
    x = 110,451.87

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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.