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Finding the Fourth Proportional to 127,299.88, 190,659.11 and 60,786.83

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Solution

The fourth proportional to 127,299.88, 190,659.11 and 60,786.83 is: 91,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,299.88 : 190,659.11 = 60,786.83 : x
  2. Step 2: Convert to fraction form
    127,299.88/190,659.11 = 60,786.83/x
  3. Step 3: Cross multiply
    127,299.88x = 190,659.11 × 60,786.83
  4. Step 4: Simplify right side
    127,299.88x = 11,589,562,907.52
  5. Step 5: Solve for x
    x = 11,589,562,907.52/127,299.88
  6. Step 6: Final answer
    x = 91,041.43

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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.