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Finding the Fourth Proportional to 84,652.34, 116,796.57 and 66,691.59

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Solution

The fourth proportional to 84,652.34, 116,796.57 and 66,691.59 is: 92,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,652.34 : 116,796.57 = 66,691.59 : x
  2. Step 2: Convert to fraction form
    84,652.34/116,796.57 = 66,691.59/x
  3. Step 3: Cross multiply
    84,652.34x = 116,796.57 × 66,691.59
  4. Step 4: Simplify right side
    84,652.34x = 7,789,348,959.85
  5. Step 5: Solve for x
    x = 7,789,348,959.85/84,652.34
  6. Step 6: Final answer
    x = 92,015.76

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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.