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Finding the Fourth Proportional to 84,959.88, 117,249.49 and 47,236.56

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Solution

The fourth proportional to 84,959.88, 117,249.49 and 47,236.56 is: 65,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,959.88 : 117,249.49 = 47,236.56 : x
  2. Step 2: Convert to fraction form
    84,959.88/117,249.49 = 47,236.56/x
  3. Step 3: Cross multiply
    84,959.88x = 117,249.49 × 47,236.56
  4. Step 4: Simplify right side
    84,959.88x = 5,538,461,983.11
  5. Step 5: Solve for x
    x = 5,538,461,983.11/84,959.88
  6. Step 6: Final answer
    x = 65,189.15

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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.