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Finding the Fourth Proportional to 144,556.88, 199,485.39 and 80,022.39

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Solution

The fourth proportional to 144,556.88, 199,485.39 and 80,022.39 is: 110,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,556.88 : 199,485.39 = 80,022.39 : x
  2. Step 2: Convert to fraction form
    144,556.88/199,485.39 = 80,022.39/x
  3. Step 3: Cross multiply
    144,556.88x = 199,485.39 × 80,022.39
  4. Step 4: Simplify right side
    144,556.88x = 15,963,297,677.88
  5. Step 5: Solve for x
    x = 15,963,297,677.88/144,556.88
  6. Step 6: Final answer
    x = 110,429.18

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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.