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Finding the Fourth Proportional to 74,099.20, 111,073.20 and 36,601.60

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Solution

The fourth proportional to 74,099.20, 111,073.20 and 36,601.60 is: 54,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,099.20 : 111,073.20 = 36,601.60 : x
  2. Step 2: Convert to fraction form
    74,099.20/111,073.20 = 36,601.60/x
  3. Step 3: Cross multiply
    74,099.20x = 111,073.20 × 36,601.60
  4. Step 4: Simplify right side
    74,099.20x = 4,065,456,837.12
  5. Step 5: Solve for x
    x = 4,065,456,837.12/74,099.20
  6. Step 6: Final answer
    x = 54,865.06

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1.5x scale

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.