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Finding the Fourth Proportional to 444,105.75, 666,165.51 and 128,563.77

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Solution

The fourth proportional to 444,105.75, 666,165.51 and 128,563.77 is: 192,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,105.75 : 666,165.51 = 128,563.77 : x
  2. Step 2: Convert to fraction form
    444,105.75/666,165.51 = 128,563.77/x
  3. Step 3: Cross multiply
    444,105.75x = 666,165.51 × 128,563.77
  4. Step 4: Simplify right side
    444,105.75x = 85,644,749,409.57
  5. Step 5: Solve for x
    x = 85,644,749,409.57/444,105.75
  6. Step 6: Final answer
    x = 192,847.65

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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.