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Finding the Fourth Proportional to 60,161.37, 82,986.36 and 38,643.87

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Solution

The fourth proportional to 60,161.37, 82,986.36 and 38,643.87 is: 53,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,161.37 : 82,986.36 = 38,643.87 : x
  2. Step 2: Convert to fraction form
    60,161.37/82,986.36 = 38,643.87/x
  3. Step 3: Cross multiply
    60,161.37x = 82,986.36 × 38,643.87
  4. Step 4: Simplify right side
    60,161.37x = 3,206,914,107.61
  5. Step 5: Solve for x
    x = 3,206,914,107.61/60,161.37
  6. Step 6: Final answer
    x = 53,305.20

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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.