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Finding the Fourth Proportional to 339,893.24, 509,735.64 and 112,146.82

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Solution

The fourth proportional to 339,893.24, 509,735.64 and 112,146.82 is: 168,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,893.24 : 509,735.64 = 112,146.82 : x
  2. Step 2: Convert to fraction form
    339,893.24/509,735.64 = 112,146.82/x
  3. Step 3: Cross multiply
    339,893.24x = 509,735.64 × 112,146.82
  4. Step 4: Simplify right side
    339,893.24x = 57,165,229,792.33
  5. Step 5: Solve for x
    x = 57,165,229,792.33/339,893.24
  6. Step 6: Final answer
    x = 168,185.84

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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.