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Finding the Fourth Proportional to 100,515.58, 150,776.99 and 50,568.50

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Solution

The fourth proportional to 100,515.58, 150,776.99 and 50,568.50 is: 75,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,515.58 : 150,776.99 = 50,568.50 : x
  2. Step 2: Convert to fraction form
    100,515.58/150,776.99 = 50,568.50/x
  3. Step 3: Cross multiply
    100,515.58x = 150,776.99 × 50,568.50
  4. Step 4: Simplify right side
    100,515.58x = 7,624,566,816.99
  5. Step 5: Solve for x
    x = 7,624,566,816.99/100,515.58
  6. Step 6: Final answer
    x = 75,854.57

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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.