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Finding the Fourth Proportional to 351,877.89, 485,592.31 and 190,732.20

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Solution

The fourth proportional to 351,877.89, 485,592.31 and 190,732.20 is: 263,210.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,877.89 : 485,592.31 = 190,732.20 : x
  2. Step 2: Convert to fraction form
    351,877.89/485,592.31 = 190,732.20/x
  3. Step 3: Cross multiply
    351,877.89x = 485,592.31 × 190,732.20
  4. Step 4: Simplify right side
    351,877.89x = 92,618,089,589.38
  5. Step 5: Solve for x
    x = 92,618,089,589.38/351,877.89
  6. Step 6: Final answer
    x = 263,210.88

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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.