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Finding the Fourth Proportional to 57,491,892.40, 86,245,711.80 and 19,149,408.40

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Solution

The fourth proportional to 57,491,892.40, 86,245,711.80 and 19,149,408.40 is: 28,726,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,491,892.40 : 86,245,711.80 = 19,149,408.40 : x
  2. Step 2: Convert to fraction form
    57,491,892.40/86,245,711.80 = 19,149,408.40/x
  3. Step 3: Cross multiply
    57,491,892.40x = 86,245,711.80 × 19,149,408.40
  4. Step 4: Simplify right side
    57,491,892.40x = 1,651,554,358,006,899
  5. Step 5: Solve for x
    x = 1,651,554,358,006,899/57,491,892.40
  6. Step 6: Final answer
    x = 28,726,735.01

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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.