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Finding the Fourth Proportional to 368,930.37, 552,916.22 and 166,377.72

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Solution

The fourth proportional to 368,930.37, 552,916.22 and 166,377.72 is: 249,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,930.37 : 552,916.22 = 166,377.72 : x
  2. Step 2: Convert to fraction form
    368,930.37/552,916.22 = 166,377.72/x
  3. Step 3: Cross multiply
    368,930.37x = 552,916.22 × 166,377.72
  4. Step 4: Simplify right side
    368,930.37x = 91,992,940,034.62
  5. Step 5: Solve for x
    x = 91,992,940,034.62/368,930.37
  6. Step 6: Final answer
    x = 249,350.41

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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.