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Finding the Fourth Proportional to 81,861,609,603.60, 122,792,414,405.40 and 81,861,609,603.60

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Solution

The fourth proportional to 81,861,609,603.60, 122,792,414,405.40 and 81,861,609,603.60 is: 122,792,414,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,861,609,603.60 : 122,792,414,405.40 = 81,861,609,603.60 : x
  2. Step 2: Convert to fraction form
    81,861,609,603.60/122,792,414,405.40 = 81,861,609,603.60/x
  3. Step 3: Cross multiply
    81,861,609,603.60x = 122,792,414,405.40 × 81,861,609,603.60
  4. Step 4: Simplify right side
    81,861,609,603.60x = 10,051,984,690,338,324,283,392
  5. Step 5: Solve for x
    x = 10,051,984,690,338,324,283,392/81,861,609,603.60
  6. Step 6: Final answer
    x = 122,792,414,405.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.