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Finding the Fourth Proportional to 341,315.78, 471,012.49 and 188,355.38

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Solution

The fourth proportional to 341,315.78, 471,012.49 and 188,355.38 is: 259,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,315.78 : 471,012.49 = 188,355.38 : x
  2. Step 2: Convert to fraction form
    341,315.78/471,012.49 = 188,355.38/x
  3. Step 3: Cross multiply
    341,315.78x = 471,012.49 × 188,355.38
  4. Step 4: Simplify right side
    341,315.78x = 88,717,737,245.34
  5. Step 5: Solve for x
    x = 88,717,737,245.34/341,315.78
  6. Step 6: Final answer
    x = 259,928.61

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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.