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Finding the Fourth Proportional to 100,405.35, 150,603.46 and 44,230.43

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Solution

The fourth proportional to 100,405.35, 150,603.46 and 44,230.43 is: 66,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405.35 : 150,603.46 = 44,230.43 : x
  2. Step 2: Convert to fraction form
    100,405.35/150,603.46 = 44,230.43/x
  3. Step 3: Cross multiply
    100,405.35x = 150,603.46 × 44,230.43
  4. Step 4: Simplify right side
    100,405.35x = 6,661,255,795.29
  5. Step 5: Solve for x
    x = 6,661,255,795.29/100,405.35
  6. Step 6: Final answer
    x = 66,343.63

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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.