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Finding the Fourth Proportional to 73,269.20, 109,903.80 and 50,718.80

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Solution

The fourth proportional to 73,269.20, 109,903.80 and 50,718.80 is: 76,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,269.20 : 109,903.80 = 50,718.80 : x
  2. Step 2: Convert to fraction form
    73,269.20/109,903.80 = 50,718.80/x
  3. Step 3: Cross multiply
    73,269.20x = 109,903.80 × 50,718.80
  4. Step 4: Simplify right side
    73,269.20x = 5,574,188,851.44
  5. Step 5: Solve for x
    x = 5,574,188,851.44/73,269.20
  6. Step 6: Final answer
    x = 76,078.20

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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.