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Finding the Fourth Proportional to 70,914.44, 106,336.56 and 41,339.72

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Solution

The fourth proportional to 70,914.44, 106,336.56 and 41,339.72 is: 61,989.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,914.44 : 106,336.56 = 41,339.72 : x
  2. Step 2: Convert to fraction form
    70,914.44/106,336.56 = 41,339.72/x
  3. Step 3: Cross multiply
    70,914.44x = 106,336.56 × 41,339.72
  4. Step 4: Simplify right side
    70,914.44x = 4,395,923,616.16
  5. Step 5: Solve for x
    x = 4,395,923,616.16/70,914.44
  6. Step 6: Final answer
    x = 61,989.12

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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.