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Finding the Fourth Proportional to 106,686, 159,998.76 and 44,279.28

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Solution

The fourth proportional to 106,686, 159,998.76 and 44,279.28 is: 66,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,686 : 159,998.76 = 44,279.28 : x
  2. Step 2: Convert to fraction form
    106,686/159,998.76 = 44,279.28/x
  3. Step 3: Cross multiply
    106,686x = 159,998.76 × 44,279.28
  4. Step 4: Simplify right side
    106,686x = 7,084,629,893.69
  5. Step 5: Solve for x
    x = 7,084,629,893.69/106,686
  6. Step 6: Final answer
    x = 66,406.37

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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.