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Finding the Fourth Proportional to 127,635.84, 191,481.48 and 48,772.56

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Solution

The fourth proportional to 127,635.84, 191,481.48 and 48,772.56 is: 73,169.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,635.84 : 191,481.48 = 48,772.56 : x
  2. Step 2: Convert to fraction form
    127,635.84/191,481.48 = 48,772.56/x
  3. Step 3: Cross multiply
    127,635.84x = 191,481.48 × 48,772.56
  4. Step 4: Simplify right side
    127,635.84x = 9,339,041,972.19
  5. Step 5: Solve for x
    x = 9,339,041,972.19/127,635.84
  6. Step 6: Final answer
    x = 73,169.43

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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.