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Finding the Fourth Proportional to 84,435.88, 126,669.16 and 40,062.22

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Solution

The fourth proportional to 84,435.88, 126,669.16 and 40,062.22 is: 60,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,435.88 : 126,669.16 = 40,062.22 : x
  2. Step 2: Convert to fraction form
    84,435.88/126,669.16 = 40,062.22/x
  3. Step 3: Cross multiply
    84,435.88x = 126,669.16 × 40,062.22
  4. Step 4: Simplify right side
    84,435.88x = 5,074,647,538.62
  5. Step 5: Solve for x
    x = 5,074,647,538.62/84,435.88
  6. Step 6: Final answer
    x = 60,100.61

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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.