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Finding the Fourth Proportional to 56,979,493.60, 85,469,240.40 and 16,591,295.20

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Solution

The fourth proportional to 56,979,493.60, 85,469,240.40 and 16,591,295.20 is: 24,886,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,979,493.60 : 85,469,240.40 = 16,591,295.20 : x
  2. Step 2: Convert to fraction form
    56,979,493.60/85,469,240.40 = 16,591,295.20/x
  3. Step 3: Cross multiply
    56,979,493.60x = 85,469,240.40 × 16,591,295.20
  4. Step 4: Simplify right side
    56,979,493.60x = 1,418,045,397,996,166
  5. Step 5: Solve for x
    x = 1,418,045,397,996,166/56,979,493.60
  6. Step 6: Final answer
    x = 24,886,942.80

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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.