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Finding the Fourth Proportional to 335,645.50, 503,469.60 and 135,969.66

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Solution

The fourth proportional to 335,645.50, 503,469.60 and 135,969.66 is: 203,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,645.50 : 503,469.60 = 135,969.66 : x
  2. Step 2: Convert to fraction form
    335,645.50/503,469.60 = 135,969.66/x
  3. Step 3: Cross multiply
    335,645.50x = 503,469.60 × 135,969.66
  4. Step 4: Simplify right side
    335,645.50x = 68,456,587,814.99
  5. Step 5: Solve for x
    x = 68,456,587,814.99/335,645.50
  6. Step 6: Final answer
    x = 203,955.03

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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.