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Finding the Fourth Proportional to 217,080,704.80, 325,526,578.80 and 71,457,997.60

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Solution

The fourth proportional to 217,080,704.80, 325,526,578.80 and 71,457,997.60 is: 107,155,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,080,704.80 : 325,526,578.80 = 71,457,997.60 : x
  2. Step 2: Convert to fraction form
    217,080,704.80/325,526,578.80 = 71,457,997.60/x
  3. Step 3: Cross multiply
    217,080,704.80x = 325,526,578.80 × 71,457,997.60
  4. Step 4: Simplify right side
    217,080,704.80x = 23,261,477,486,626,608
  5. Step 5: Solve for x
    x = 23,261,477,486,626,608/217,080,704.80
  6. Step 6: Final answer
    x = 107,155,896.27

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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.