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Finding the Fourth Proportional to 339,790.30, 468,912.36 and 186,838.36

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Solution

The fourth proportional to 339,790.30, 468,912.36 and 186,838.36 is: 257,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,790.30 : 468,912.36 = 186,838.36 : x
  2. Step 2: Convert to fraction form
    339,790.30/468,912.36 = 186,838.36/x
  3. Step 3: Cross multiply
    339,790.30x = 468,912.36 × 186,838.36
  4. Step 4: Simplify right side
    339,790.30x = 87,610,815,706.38
  5. Step 5: Solve for x
    x = 87,610,815,706.38/339,790.30
  6. Step 6: Final answer
    x = 257,837.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.