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Finding the Fourth Proportional to 363,401, 545,120.36 and 110,661.96

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Solution

The fourth proportional to 363,401, 545,120.36 and 110,661.96 is: 165,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,401 : 545,120.36 = 110,661.96 : x
  2. Step 2: Convert to fraction form
    363,401/545,120.36 = 110,661.96/x
  3. Step 3: Cross multiply
    363,401x = 545,120.36 × 110,661.96
  4. Step 4: Simplify right side
    363,401x = 60,324,087,473.51
  5. Step 5: Solve for x
    x = 60,324,087,473.51/363,401
  6. Step 6: Final answer
    x = 165,998.68

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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.