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Finding the Fourth Proportional to 74,481.40, 111,576.30 and 44,811.10

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Solution

The fourth proportional to 74,481.40, 111,576.30 and 44,811.10 is: 67,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,481.40 : 111,576.30 = 44,811.10 : x
  2. Step 2: Convert to fraction form
    74,481.40/111,576.30 = 44,811.10/x
  3. Step 3: Cross multiply
    74,481.40x = 111,576.30 × 44,811.10
  4. Step 4: Simplify right side
    74,481.40x = 4,999,856,736.93
  5. Step 5: Solve for x
    x = 4,999,856,736.93/74,481.40
  6. Step 6: Final answer
    x = 67,128.93

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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.