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Finding the Fourth Proportional to 40,975,563.80, 61,463,345.70 and 20,568,229.40

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Solution

The fourth proportional to 40,975,563.80, 61,463,345.70 and 20,568,229.40 is: 30,852,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,975,563.80 : 61,463,345.70 = 20,568,229.40 : x
  2. Step 2: Convert to fraction form
    40,975,563.80/61,463,345.70 = 20,568,229.40/x
  3. Step 3: Cross multiply
    40,975,563.80x = 61,463,345.70 × 20,568,229.40
  4. Step 4: Simplify right side
    40,975,563.80x = 1,264,192,194,049,103.50
  5. Step 5: Solve for x
    x = 1,264,192,194,049,103.50/40,975,563.80
  6. Step 6: Final answer
    x = 30,852,344.10

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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.