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Finding the Fourth Proportional to 85,622, 118,158.38 and 47,896.24

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Solution

The fourth proportional to 85,622, 118,158.38 and 47,896.24 is: 66,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,622 : 118,158.38 = 47,896.24 : x
  2. Step 2: Convert to fraction form
    85,622/118,158.38 = 47,896.24/x
  3. Step 3: Cross multiply
    85,622x = 118,158.38 × 47,896.24
  4. Step 4: Simplify right side
    85,622x = 5,659,342,126.49
  5. Step 5: Solve for x
    x = 5,659,342,126.49/85,622
  6. Step 6: Final answer
    x = 66,096.82

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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.