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Finding the Fourth Proportional to 54,991,818.20, 82,487,727.30 and 54,991,818.20

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Solution

The fourth proportional to 54,991,818.20, 82,487,727.30 and 54,991,818.20 is: 82,487,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,991,818.20 : 82,487,727.30 = 54,991,818.20 : x
  2. Step 2: Convert to fraction form
    54,991,818.20/82,487,727.30 = 54,991,818.20/x
  3. Step 3: Cross multiply
    54,991,818.20x = 82,487,727.30 × 54,991,818.20
  4. Step 4: Simplify right side
    54,991,818.20x = 4,536,150,103,412,777
  5. Step 5: Solve for x
    x = 4,536,150,103,412,777/54,991,818.20
  6. Step 6: Final answer
    x = 82,487,727.30

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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.