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Finding the Fourth Proportional to 368,481.92, 551,837.12 and 210,230.60

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Solution

The fourth proportional to 368,481.92, 551,837.12 and 210,230.60 is: 314,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,481.92 : 551,837.12 = 210,230.60 : x
  2. Step 2: Convert to fraction form
    368,481.92/551,837.12 = 210,230.60/x
  3. Step 3: Cross multiply
    368,481.92x = 551,837.12 × 210,230.60
  4. Step 4: Simplify right side
    368,481.92x = 116,013,045,029.53
  5. Step 5: Solve for x
    x = 116,013,045,029.53/368,481.92
  6. Step 6: Final answer
    x = 314,840.54

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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.