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Finding the Fourth Proportional to 302,399.88, 417,311.87 and 164,579.33

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Solution

The fourth proportional to 302,399.88, 417,311.87 and 164,579.33 is: 227,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,399.88 : 417,311.87 = 164,579.33 : x
  2. Step 2: Convert to fraction form
    302,399.88/417,311.87 = 164,579.33/x
  3. Step 3: Cross multiply
    302,399.88x = 417,311.87 × 164,579.33
  4. Step 4: Simplify right side
    302,399.88x = 68,680,906,290.54
  5. Step 5: Solve for x
    x = 68,680,906,290.54/302,399.88
  6. Step 6: Final answer
    x = 227,119.49

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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.