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Finding the Fourth Proportional to 73,183.60, 109,775.40 and 20,594.80

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Solution

The fourth proportional to 73,183.60, 109,775.40 and 20,594.80 is: 30,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,183.60 : 109,775.40 = 20,594.80 : x
  2. Step 2: Convert to fraction form
    73,183.60/109,775.40 = 20,594.80/x
  3. Step 3: Cross multiply
    73,183.60x = 109,775.40 × 20,594.80
  4. Step 4: Simplify right side
    73,183.60x = 2,260,802,407.92
  5. Step 5: Solve for x
    x = 2,260,802,407.92/73,183.60
  6. Step 6: Final answer
    x = 30,892.20

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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.