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Finding the Fourth Proportional to 85,012.73, 117,349.14 and 73,027.97

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Solution

The fourth proportional to 85,012.73, 117,349.14 and 73,027.97 is: 100,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.73 : 117,349.14 = 73,027.97 : x
  2. Step 2: Convert to fraction form
    85,012.73/117,349.14 = 73,027.97/x
  3. Step 3: Cross multiply
    85,012.73x = 117,349.14 × 73,027.97
  4. Step 4: Simplify right side
    85,012.73x = 8,569,769,475.45
  5. Step 5: Solve for x
    x = 8,569,769,475.45/85,012.73
  6. Step 6: Final answer
    x = 100,805.72

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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.