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Finding the Fourth Proportional to 140,662.37, 211,012.09 and 45,859.26

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Solution

The fourth proportional to 140,662.37, 211,012.09 and 45,859.26 is: 68,794.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,662.37 : 211,012.09 = 45,859.26 : x
  2. Step 2: Convert to fraction form
    140,662.37/211,012.09 = 45,859.26/x
  3. Step 3: Cross multiply
    140,662.37x = 211,012.09 × 45,859.26
  4. Step 4: Simplify right side
    140,662.37x = 9,676,858,975.10
  5. Step 5: Solve for x
    x = 9,676,858,975.10/140,662.37
  6. Step 6: Final answer
    x = 68,794.94

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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.