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Finding the Fourth Proportional to 127,912.32, 191,868.84 and 44,786.88

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Solution

The fourth proportional to 127,912.32, 191,868.84 and 44,786.88 is: 67,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,912.32 : 191,868.84 = 44,786.88 : x
  2. Step 2: Convert to fraction form
    127,912.32/191,868.84 = 44,786.88/x
  3. Step 3: Cross multiply
    127,912.32x = 191,868.84 × 44,786.88
  4. Step 4: Simplify right side
    127,912.32x = 8,593,206,712.82
  5. Step 5: Solve for x
    x = 8,593,206,712.82/127,912.32
  6. Step 6: Final answer
    x = 67,180.45

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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.