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Finding the Fourth Proportional to 68,147,781.60, 102,171,253.20 and 32,203,999.20

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Solution

The fourth proportional to 68,147,781.60, 102,171,253.20 and 32,203,999.20 is: 48,282,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,147,781.60 : 102,171,253.20 = 32,203,999.20 : x
  2. Step 2: Convert to fraction form
    68,147,781.60/102,171,253.20 = 32,203,999.20/x
  3. Step 3: Cross multiply
    68,147,781.60x = 102,171,253.20 × 32,203,999.20
  4. Step 4: Simplify right side
    68,147,781.60x = 3,290,322,956,315,797.50
  5. Step 5: Solve for x
    x = 3,290,322,956,315,797.50/68,147,781.60
  6. Step 6: Final answer
    x = 48,282,172.64

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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.