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Finding the Fourth Proportional to 54,858,124.80, 82,284,562.80 and 18,462,945.60

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Solution

The fourth proportional to 54,858,124.80, 82,284,562.80 and 18,462,945.60 is: 27,693,535.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,858,124.80 : 82,284,562.80 = 18,462,945.60 : x
  2. Step 2: Convert to fraction form
    54,858,124.80/82,284,562.80 = 18,462,945.60/x
  3. Step 3: Cross multiply
    54,858,124.80x = 82,284,562.80 × 18,462,945.60
  4. Step 4: Simplify right side
    54,858,124.80x = 1,519,215,406,696,183.75
  5. Step 5: Solve for x
    x = 1,519,215,406,696,183.75/54,858,124.80
  6. Step 6: Final answer
    x = 27,693,535.14

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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.