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Finding the Fourth Proportional to 376,199.78, 519,148.82 and 212,854.54

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Solution

The fourth proportional to 376,199.78, 519,148.82 and 212,854.54 is: 293,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,199.78 : 519,148.82 = 212,854.54 : x
  2. Step 2: Convert to fraction form
    376,199.78/519,148.82 = 212,854.54/x
  3. Step 3: Cross multiply
    376,199.78x = 519,148.82 × 212,854.54
  4. Step 4: Simplify right side
    376,199.78x = 110,503,183,272.64
  5. Step 5: Solve for x
    x = 110,503,183,272.64/376,199.78
  6. Step 6: Final answer
    x = 293,735.37

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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.