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Finding the Fourth Proportional to 73,611.99, 110,428.32 and 36,173.54

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Solution

The fourth proportional to 73,611.99, 110,428.32 and 36,173.54 is: 54,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,611.99 : 110,428.32 = 36,173.54 : x
  2. Step 2: Convert to fraction form
    73,611.99/110,428.32 = 36,173.54/x
  3. Step 3: Cross multiply
    73,611.99x = 110,428.32 × 36,173.54
  4. Step 4: Simplify right side
    73,611.99x = 3,994,583,250.65
  5. Step 5: Solve for x
    x = 3,994,583,250.65/73,611.99
  6. Step 6: Final answer
    x = 54,265.39

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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.