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Finding the Fourth Proportional to 100,571.93, 150,855.54 and 50,638.62

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Solution

The fourth proportional to 100,571.93, 150,855.54 and 50,638.62 is: 75,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,571.93 : 150,855.54 = 50,638.62 : x
  2. Step 2: Convert to fraction form
    100,571.93/150,855.54 = 50,638.62/x
  3. Step 3: Cross multiply
    100,571.93x = 150,855.54 × 50,638.62
  4. Step 4: Simplify right side
    100,571.93x = 7,639,116,364.95
  5. Step 5: Solve for x
    x = 7,639,116,364.95/100,571.93
  6. Step 6: Final answer
    x = 75,956.74

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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.