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Finding the Fourth Proportional to 69,373,540.80, 103,952,224.80 and 26,219,203.20

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Solution

The fourth proportional to 69,373,540.80, 103,952,224.80 and 26,219,203.20 is: 39,287,954.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,373,540.80 : 103,952,224.80 = 26,219,203.20 : x
  2. Step 2: Convert to fraction form
    69,373,540.80/103,952,224.80 = 26,219,203.20/x
  3. Step 3: Cross multiply
    69,373,540.80x = 103,952,224.80 × 26,219,203.20
  4. Step 4: Simplify right side
    69,373,540.80x = 2,725,544,505,123,279
  5. Step 5: Solve for x
    x = 2,725,544,505,123,279/69,373,540.80
  6. Step 6: Final answer
    x = 39,287,954.37

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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.