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Finding the Fourth Proportional to 339,796.01, 509,755.48 and 140,005.26

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Solution

The fourth proportional to 339,796.01, 509,755.48 and 140,005.26 is: 210,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,796.01 : 509,755.48 = 140,005.26 : x
  2. Step 2: Convert to fraction form
    339,796.01/509,755.48 = 140,005.26/x
  3. Step 3: Cross multiply
    339,796.01x = 509,755.48 × 140,005.26
  4. Step 4: Simplify right side
    339,796.01x = 71,368,448,163.81
  5. Step 5: Solve for x
    x = 71,368,448,163.81/339,796.01
  6. Step 6: Final answer
    x = 210,033.21

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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.