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Finding the Fourth Proportional to 147,296.88, 220,739.42 and 79,682.97

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Solution

The fourth proportional to 147,296.88, 220,739.42 and 79,682.97 is: 119,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,296.88 : 220,739.42 = 79,682.97 : x
  2. Step 2: Convert to fraction form
    147,296.88/220,739.42 = 79,682.97/x
  3. Step 3: Cross multiply
    147,296.88x = 220,739.42 × 79,682.97
  4. Step 4: Simplify right side
    147,296.88x = 17,589,172,183.26
  5. Step 5: Solve for x
    x = 17,589,172,183.26/147,296.88
  6. Step 6: Final answer
    x = 119,413.07

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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.