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Finding the Fourth Proportional to 253,260.44, 379,201.20 and 178,268.12

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Solution

The fourth proportional to 253,260.44, 379,201.20 and 178,268.12 is: 266,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,260.44 : 379,201.20 = 178,268.12 : x
  2. Step 2: Convert to fraction form
    253,260.44/379,201.20 = 178,268.12/x
  3. Step 3: Cross multiply
    253,260.44x = 379,201.20 × 178,268.12
  4. Step 4: Simplify right side
    253,260.44x = 67,599,485,025.74
  5. Step 5: Solve for x
    x = 67,599,485,025.74/253,260.44
  6. Step 6: Final answer
    x = 266,916.87

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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.