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Finding the Fourth Proportional to 71,773,107.20, 107,659,660.80 and 33,509,355.20

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Solution

The fourth proportional to 71,773,107.20, 107,659,660.80 and 33,509,355.20 is: 50,264,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,773,107.20 : 107,659,660.80 = 33,509,355.20 : x
  2. Step 2: Convert to fraction form
    71,773,107.20/107,659,660.80 = 33,509,355.20/x
  3. Step 3: Cross multiply
    71,773,107.20x = 107,659,660.80 × 33,509,355.20
  4. Step 4: Simplify right side
    71,773,107.20x = 3,607,605,814,458,716
  5. Step 5: Solve for x
    x = 3,607,605,814,458,716/71,773,107.20
  6. Step 6: Final answer
    x = 50,264,032.80

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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.