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Finding the Fourth Proportional to 84,850.82, 117,067.79 and 49,027.76

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Solution

The fourth proportional to 84,850.82, 117,067.79 and 49,027.76 is: 67,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,850.82 : 117,067.79 = 49,027.76 : x
  2. Step 2: Convert to fraction form
    84,850.82/117,067.79 = 49,027.76/x
  3. Step 3: Cross multiply
    84,850.82x = 117,067.79 × 49,027.76
  4. Step 4: Simplify right side
    84,850.82x = 5,739,570,681.37
  5. Step 5: Solve for x
    x = 5,739,570,681.37/84,850.82
  6. Step 6: Final answer
    x = 67,643.08

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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.