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Finding the Fourth Proportional to 127,474.56, 175,912.56 and 70,885.44

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Solution

The fourth proportional to 127,474.56, 175,912.56 and 70,885.44 is: 97,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,474.56 : 175,912.56 = 70,885.44 : x
  2. Step 2: Convert to fraction form
    127,474.56/175,912.56 = 70,885.44/x
  3. Step 3: Cross multiply
    127,474.56x = 175,912.56 × 70,885.44
  4. Step 4: Simplify right side
    127,474.56x = 12,469,639,217.13
  5. Step 5: Solve for x
    x = 12,469,639,217.13/127,474.56
  6. Step 6: Final answer
    x = 97,820.61

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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.