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Finding the Fourth Proportional to 275,391.50, 380,163.62 and 168,004.33

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Solution

The fourth proportional to 275,391.50, 380,163.62 and 168,004.33 is: 231,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,391.50 : 380,163.62 = 168,004.33 : x
  2. Step 2: Convert to fraction form
    275,391.50/380,163.62 = 168,004.33/x
  3. Step 3: Cross multiply
    275,391.50x = 380,163.62 × 168,004.33
  4. Step 4: Simplify right side
    275,391.50x = 63,869,133,738.08
  5. Step 5: Solve for x
    x = 63,869,133,738.08/275,391.50
  6. Step 6: Final answer
    x = 231,921.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.