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Finding the Fourth Proportional to 73,355.70, 109,892.07 and 43,797.18

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Solution

The fourth proportional to 73,355.70, 109,892.07 and 43,797.18 is: 65,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,355.70 : 109,892.07 = 43,797.18 : x
  2. Step 2: Convert to fraction form
    73,355.70/109,892.07 = 43,797.18/x
  3. Step 3: Cross multiply
    73,355.70x = 109,892.07 × 43,797.18
  4. Step 4: Simplify right side
    73,355.70x = 4,812,962,770.36
  5. Step 5: Solve for x
    x = 4,812,962,770.36/73,355.70
  6. Step 6: Final answer
    x = 65,611.30

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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.