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Finding the Fourth Proportional to 95,698,939.20, 143,548,408.80 and 47,200,027.20

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Solution

The fourth proportional to 95,698,939.20, 143,548,408.80 and 47,200,027.20 is: 70,800,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,698,939.20 : 143,548,408.80 = 47,200,027.20 : x
  2. Step 2: Convert to fraction form
    95,698,939.20/143,548,408.80 = 47,200,027.20/x
  3. Step 3: Cross multiply
    95,698,939.20x = 143,548,408.80 × 47,200,027.20
  4. Step 4: Simplify right side
    95,698,939.20x = 6,775,488,799,876,720
  5. Step 5: Solve for x
    x = 6,775,488,799,876,720/95,698,939.20
  6. Step 6: Final answer
    x = 70,800,040.80

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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.