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Finding the Fourth Proportional to 54,367,452.80, 81,551,179.20 and 30,180,982.40

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Solution

The fourth proportional to 54,367,452.80, 81,551,179.20 and 30,180,982.40 is: 45,271,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,367,452.80 : 81,551,179.20 = 30,180,982.40 : x
  2. Step 2: Convert to fraction form
    54,367,452.80/81,551,179.20 = 30,180,982.40/x
  3. Step 3: Cross multiply
    54,367,452.80x = 81,551,179.20 × 30,180,982.40
  4. Step 4: Simplify right side
    54,367,452.80x = 2,461,294,704,134,446
  5. Step 5: Solve for x
    x = 2,461,294,704,134,446/54,367,452.80
  6. Step 6: Final answer
    x = 45,271,473.60

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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.