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Finding the Fourth Proportional to 67,661.30, 101,412.37 and 27,655.61

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Solution

The fourth proportional to 67,661.30, 101,412.37 and 27,655.61 is: 41,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,661.30 : 101,412.37 = 27,655.61 : x
  2. Step 2: Convert to fraction form
    67,661.30/101,412.37 = 27,655.61/x
  3. Step 3: Cross multiply
    67,661.30x = 101,412.37 × 27,655.61
  4. Step 4: Simplify right side
    67,661.30x = 2,804,620,481.40
  5. Step 5: Solve for x
    x = 2,804,620,481.40/67,661.30
  6. Step 6: Final answer
    x = 41,450.88

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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.