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Finding the Fourth Proportional to 101,847.22, 140,451.53 and 61,004.81

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Solution

The fourth proportional to 101,847.22, 140,451.53 and 61,004.81 is: 84,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,847.22 : 140,451.53 = 61,004.81 : x
  2. Step 2: Convert to fraction form
    101,847.22/140,451.53 = 61,004.81/x
  3. Step 3: Cross multiply
    101,847.22x = 140,451.53 × 61,004.81
  4. Step 4: Simplify right side
    101,847.22x = 8,568,218,947.96
  5. Step 5: Solve for x
    x = 8,568,218,947.96/101,847.22
  6. Step 6: Final answer
    x = 84,128.16

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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.