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Finding the Fourth Proportional to 71,194.60, 98,249.54 and 39,363.56

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Solution

The fourth proportional to 71,194.60, 98,249.54 and 39,363.56 is: 54,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,194.60 : 98,249.54 = 39,363.56 : x
  2. Step 2: Convert to fraction form
    71,194.60/98,249.54 = 39,363.56/x
  3. Step 3: Cross multiply
    71,194.60x = 98,249.54 × 39,363.56
  4. Step 4: Simplify right side
    71,194.60x = 3,867,451,662.76
  5. Step 5: Solve for x
    x = 3,867,451,662.76/71,194.60
  6. Step 6: Final answer
    x = 54,322.26

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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.