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Finding the Fourth Proportional to 84,918.52, 117,191.46 and 47,190.52

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Solution

The fourth proportional to 84,918.52, 117,191.46 and 47,190.52 is: 65,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,918.52 : 117,191.46 = 47,190.52 : x
  2. Step 2: Convert to fraction form
    84,918.52/117,191.46 = 47,190.52/x
  3. Step 3: Cross multiply
    84,918.52x = 117,191.46 × 47,190.52
  4. Step 4: Simplify right side
    84,918.52x = 5,530,325,936.96
  5. Step 5: Solve for x
    x = 5,530,325,936.96/84,918.52
  6. Step 6: Final answer
    x = 65,125.09

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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.