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Finding the Fourth Proportional to 141,940.51, 212,485.39 and 136,893.54

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Solution

The fourth proportional to 141,940.51, 212,485.39 and 136,893.54 is: 204,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,940.51 : 212,485.39 = 136,893.54 : x
  2. Step 2: Convert to fraction form
    141,940.51/212,485.39 = 136,893.54/x
  3. Step 3: Cross multiply
    141,940.51x = 212,485.39 × 136,893.54
  4. Step 4: Simplify right side
    141,940.51x = 29,087,877,235.38
  5. Step 5: Solve for x
    x = 29,087,877,235.38/141,940.51
  6. Step 6: Final answer
    x = 204,930.06

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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.