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Finding the Fourth Proportional to 73,354,896.80, 109,962,361.20 and 27,284,429.60

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Solution

The fourth proportional to 73,354,896.80, 109,962,361.20 and 27,284,429.60 is: 40,900,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,354,896.80 : 109,962,361.20 = 27,284,429.60 : x
  2. Step 2: Convert to fraction form
    73,354,896.80/109,962,361.20 = 27,284,429.60/x
  3. Step 3: Cross multiply
    73,354,896.80x = 109,962,361.20 × 27,284,429.60
  4. Step 4: Simplify right side
    73,354,896.80x = 3,000,260,302,811,172
  5. Step 5: Solve for x
    x = 3,000,260,302,811,172/73,354,896.80
  6. Step 6: Final answer
    x = 40,900,613.78

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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.