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Finding the Fourth Proportional to 61,919.75, 85,449.59 and 35,067.49

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Solution

The fourth proportional to 61,919.75, 85,449.59 and 35,067.49 is: 48,393.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.75 : 85,449.59 = 35,067.49 : x
  2. Step 2: Convert to fraction form
    61,919.75/85,449.59 = 35,067.49/x
  3. Step 3: Cross multiply
    61,919.75x = 85,449.59 × 35,067.49
  4. Step 4: Simplify right side
    61,919.75x = 2,996,502,642.83
  5. Step 5: Solve for x
    x = 2,996,502,642.83/61,919.75
  6. Step 6: Final answer
    x = 48,393.33

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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.