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Finding the Fourth Proportional to 104,571.18, 156,843.81 and 61,902

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Solution

The fourth proportional to 104,571.18, 156,843.81 and 61,902 is: 92,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,571.18 : 156,843.81 = 61,902 : x
  2. Step 2: Convert to fraction form
    104,571.18/156,843.81 = 61,902/x
  3. Step 3: Cross multiply
    104,571.18x = 156,843.81 × 61,902
  4. Step 4: Simplify right side
    104,571.18x = 9,708,945,526.62
  5. Step 5: Solve for x
    x = 9,708,945,526.62/104,571.18
  6. Step 6: Final answer
    x = 92,845.33

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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.