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Finding the Fourth Proportional to 71,699,546.88, 107,522,969.73 and 25,628,984.01

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Solution

The fourth proportional to 71,699,546.88, 107,522,969.73 and 25,628,984.01 is: 38,434,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,699,546.88 : 107,522,969.73 = 25,628,984.01 : x
  2. Step 2: Convert to fraction form
    71,699,546.88/107,522,969.73 = 25,628,984.01/x
  3. Step 3: Cross multiply
    71,699,546.88x = 107,522,969.73 × 25,628,984.01
  4. Step 4: Simplify right side
    71,699,546.88x = 2,755,704,471,917,884.50
  5. Step 5: Solve for x
    x = 2,755,704,471,917,884.50/71,699,546.88
  6. Step 6: Final answer
    x = 38,434,057.00

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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.