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Finding the Fourth Proportional to 341,940.75, 512,490.71 and 191,865.75

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Solution

The fourth proportional to 341,940.75, 512,490.71 and 191,865.75 is: 287,562.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,940.75 : 512,490.71 = 191,865.75 : x
  2. Step 2: Convert to fraction form
    341,940.75/512,490.71 = 191,865.75/x
  3. Step 3: Cross multiply
    341,940.75x = 512,490.71 × 191,865.75
  4. Step 4: Simplify right side
    341,940.75x = 98,329,414,442.18
  5. Step 5: Solve for x
    x = 98,329,414,442.18/341,940.75
  6. Step 6: Final answer
    x = 287,562.73

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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.