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Finding the Fourth Proportional to 117,676.82, 162,394.22 and 63,961.70

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Solution

The fourth proportional to 117,676.82, 162,394.22 and 63,961.70 is: 88,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,676.82 : 162,394.22 = 63,961.70 : x
  2. Step 2: Convert to fraction form
    117,676.82/162,394.22 = 63,961.70/x
  3. Step 3: Cross multiply
    117,676.82x = 162,394.22 × 63,961.70
  4. Step 4: Simplify right side
    117,676.82x = 10,387,009,729.31
  5. Step 5: Solve for x
    x = 10,387,009,729.31/117,676.82
  6. Step 6: Final answer
    x = 88,267.25

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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.