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Finding the Fourth Proportional to 144,791.80, 217,130.10 and 51,249.40

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Solution

The fourth proportional to 144,791.80, 217,130.10 and 51,249.40 is: 76,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,791.80 : 217,130.10 = 51,249.40 : x
  2. Step 2: Convert to fraction form
    144,791.80/217,130.10 = 51,249.40/x
  3. Step 3: Cross multiply
    144,791.80x = 217,130.10 × 51,249.40
  4. Step 4: Simplify right side
    144,791.80x = 11,127,787,346.94
  5. Step 5: Solve for x
    x = 11,127,787,346.94/144,791.80
  6. Step 6: Final answer
    x = 76,853.71

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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.