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Finding the Fourth Proportional to 129,950,411.40, 194,978,105.10 and 57,181,048.20

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Solution

The fourth proportional to 129,950,411.40, 194,978,105.10 and 57,181,048.20 is: 85,794,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950,411.40 : 194,978,105.10 = 57,181,048.20 : x
  2. Step 2: Convert to fraction form
    129,950,411.40/194,978,105.10 = 57,181,048.20/x
  3. Step 3: Cross multiply
    129,950,411.40x = 194,978,105.10 × 57,181,048.20
  4. Step 4: Simplify right side
    129,950,411.40x = 11,149,052,425,667,766
  5. Step 5: Solve for x
    x = 11,149,052,425,667,766/129,950,411.40
  6. Step 6: Final answer
    x = 85,794,668.18

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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.