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Finding the Fourth Proportional to 248,793.73, 343,334.85 and 139,898.44

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Solution

The fourth proportional to 248,793.73, 343,334.85 and 139,898.44 is: 193,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,793.73 : 343,334.85 = 139,898.44 : x
  2. Step 2: Convert to fraction form
    248,793.73/343,334.85 = 139,898.44/x
  3. Step 3: Cross multiply
    248,793.73x = 343,334.85 × 139,898.44
  4. Step 4: Simplify right side
    248,793.73x = 48,032,010,604.11
  5. Step 5: Solve for x
    x = 48,032,010,604.11/248,793.73
  6. Step 6: Final answer
    x = 193,059.57

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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.