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Finding the Fourth Proportional to 100,481.85, 150,712.38 and 50,541.57

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Solution

The fourth proportional to 100,481.85, 150,712.38 and 50,541.57 is: 75,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,481.85 : 150,712.38 = 50,541.57 : x
  2. Step 2: Convert to fraction form
    100,481.85/150,712.38 = 50,541.57/x
  3. Step 3: Cross multiply
    100,481.85x = 150,712.38 × 50,541.57
  4. Step 4: Simplify right side
    100,481.85x = 7,617,240,303.64
  5. Step 5: Solve for x
    x = 7,617,240,303.64/100,481.85
  6. Step 6: Final answer
    x = 75,807.13

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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.