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Finding the Fourth Proportional to 74,216.70, 111,325.05 and 44,619.30

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Solution

The fourth proportional to 74,216.70, 111,325.05 and 44,619.30 is: 66,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,216.70 : 111,325.05 = 44,619.30 : x
  2. Step 2: Convert to fraction form
    74,216.70/111,325.05 = 44,619.30/x
  3. Step 3: Cross multiply
    74,216.70x = 111,325.05 × 44,619.30
  4. Step 4: Simplify right side
    74,216.70x = 4,967,245,803.47
  5. Step 5: Solve for x
    x = 4,967,245,803.47/74,216.70
  6. Step 6: Final answer
    x = 66,928.95

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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.