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Finding the Fourth Proportional to 100,553.86, 150,828.47 and 50,620.56

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Solution

The fourth proportional to 100,553.86, 150,828.47 and 50,620.56 is: 75,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,553.86 : 150,828.47 = 50,620.56 : x
  2. Step 2: Convert to fraction form
    100,553.86/150,828.47 = 50,620.56/x
  3. Step 3: Cross multiply
    100,553.86x = 150,828.47 × 50,620.56
  4. Step 4: Simplify right side
    100,553.86x = 7,635,021,615.34
  5. Step 5: Solve for x
    x = 7,635,021,615.34/100,553.86
  6. Step 6: Final answer
    x = 75,929.67

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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.