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Finding the Fourth Proportional to 63,087.93, 87,067.44 and 47,144.70

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Solution

The fourth proportional to 63,087.93, 87,067.44 and 47,144.70 is: 65,064.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,087.93 : 87,067.44 = 47,144.70 : x
  2. Step 2: Convert to fraction form
    63,087.93/87,067.44 = 47,144.70/x
  3. Step 3: Cross multiply
    63,087.93x = 87,067.44 × 47,144.70
  4. Step 4: Simplify right side
    63,087.93x = 4,104,768,338.57
  5. Step 5: Solve for x
    x = 4,104,768,338.57/63,087.93
  6. Step 6: Final answer
    x = 65,064.24

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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.