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Finding the Fourth Proportional to 104,640.54, 156,723.21 and 51,932.22

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Solution

The fourth proportional to 104,640.54, 156,723.21 and 51,932.22 is: 77,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,640.54 : 156,723.21 = 51,932.22 : x
  2. Step 2: Convert to fraction form
    104,640.54/156,723.21 = 51,932.22/x
  3. Step 3: Cross multiply
    104,640.54x = 156,723.21 × 51,932.22
  4. Step 4: Simplify right side
    104,640.54x = 8,138,984,220.83
  5. Step 5: Solve for x
    x = 8,138,984,220.83/104,640.54
  6. Step 6: Final answer
    x = 77,780.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.