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Finding the Fourth Proportional to 71,196.82, 98,249.16 and 39,365.44

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Solution

The fourth proportional to 71,196.82, 98,249.16 and 39,365.44 is: 54,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,196.82 : 98,249.16 = 39,365.44 : x
  2. Step 2: Convert to fraction form
    71,196.82/98,249.16 = 39,365.44/x
  3. Step 3: Cross multiply
    71,196.82x = 98,249.16 × 39,365.44
  4. Step 4: Simplify right side
    71,196.82x = 3,867,621,413.03
  5. Step 5: Solve for x
    x = 3,867,621,413.03/71,196.82
  6. Step 6: Final answer
    x = 54,322.95

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1.5x scale

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.