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Finding the Fourth Proportional to 100,620.24, 150,855.84 and 50,663.76

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Solution

The fourth proportional to 100,620.24, 150,855.84 and 50,663.76 is: 75,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,620.24 : 150,855.84 = 50,663.76 : x
  2. Step 2: Convert to fraction form
    100,620.24/150,855.84 = 50,663.76/x
  3. Step 3: Cross multiply
    100,620.24x = 150,855.84 × 50,663.76
  4. Step 4: Simplify right side
    100,620.24x = 7,642,924,072.36
  5. Step 5: Solve for x
    x = 7,642,924,072.36/100,620.24
  6. Step 6: Final answer
    x = 75,958.12

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1.5x scale

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.