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Finding the Fourth Proportional to 70,994.74, 97,968.30 and 39,163.60

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Solution

The fourth proportional to 70,994.74, 97,968.30 and 39,163.60 is: 54,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,994.74 : 97,968.30 = 39,163.60 : x
  2. Step 2: Convert to fraction form
    70,994.74/97,968.30 = 39,163.60/x
  3. Step 3: Cross multiply
    70,994.74x = 97,968.30 × 39,163.60
  4. Step 4: Simplify right side
    70,994.74x = 3,836,791,313.88
  5. Step 5: Solve for x
    x = 3,836,791,313.88/70,994.74
  6. Step 6: Final answer
    x = 54,043.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.