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Finding the Fourth Proportional to 101,640.72, 140,260.41 and 58,622.01

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Solution

The fourth proportional to 101,640.72, 140,260.41 and 58,622.01 is: 80,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,640.72 : 140,260.41 = 58,622.01 : x
  2. Step 2: Convert to fraction form
    101,640.72/140,260.41 = 58,622.01/x
  3. Step 3: Cross multiply
    101,640.72x = 140,260.41 × 58,622.01
  4. Step 4: Simplify right side
    101,640.72x = 8,222,347,157.62
  5. Step 5: Solve for x
    x = 8,222,347,157.62/101,640.72
  6. Step 6: Final answer
    x = 80,896.19

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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.