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Finding the Fourth Proportional to 408,600.68, 612,769.05 and 148,901.27

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Solution

The fourth proportional to 408,600.68, 612,769.05 and 148,901.27 is: 223,303.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,600.68 : 612,769.05 = 148,901.27 : x
  2. Step 2: Convert to fraction form
    408,600.68/612,769.05 = 148,901.27/x
  3. Step 3: Cross multiply
    408,600.68x = 612,769.05 × 148,901.27
  4. Step 4: Simplify right side
    408,600.68x = 91,242,086,697.85
  5. Step 5: Solve for x
    x = 91,242,086,697.85/408,600.68
  6. Step 6: Final answer
    x = 223,303.81

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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.