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Finding the Fourth Proportional to 54,790,872.80, 82,029,022.80 and 53,218,008.80

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Solution

The fourth proportional to 54,790,872.80, 82,029,022.80 and 53,218,008.80 is: 79,674,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,790,872.80 : 82,029,022.80 = 53,218,008.80 : x
  2. Step 2: Convert to fraction form
    54,790,872.80/82,029,022.80 = 53,218,008.80/x
  3. Step 3: Cross multiply
    54,790,872.80x = 82,029,022.80 × 53,218,008.80
  4. Step 4: Simplify right side
    54,790,872.80x = 4,365,421,257,225,800
  5. Step 5: Solve for x
    x = 4,365,421,257,225,800/54,790,872.80
  6. Step 6: Final answer
    x = 79,674,241.97

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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.