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Finding the Fourth Proportional to 235,279.36, 352,978.44 and 69,067.36

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Solution

The fourth proportional to 235,279.36, 352,978.44 and 69,067.36 is: 103,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,279.36 : 352,978.44 = 69,067.36 : x
  2. Step 2: Convert to fraction form
    235,279.36/352,978.44 = 69,067.36/x
  3. Step 3: Cross multiply
    235,279.36x = 352,978.44 × 69,067.36
  4. Step 4: Simplify right side
    235,279.36x = 24,379,288,987.72
  5. Step 5: Solve for x
    x = 24,379,288,987.72/235,279.36
  6. Step 6: Final answer
    x = 103,618.48

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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.