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Finding the Fourth Proportional to 227,461.54, 313,795.40 and 131,912.86

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Solution

The fourth proportional to 227,461.54, 313,795.40 and 131,912.86 is: 181,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,461.54 : 313,795.40 = 131,912.86 : x
  2. Step 2: Convert to fraction form
    227,461.54/313,795.40 = 131,912.86/x
  3. Step 3: Cross multiply
    227,461.54x = 313,795.40 × 131,912.86
  4. Step 4: Simplify right side
    227,461.54x = 41,393,648,668.84
  5. Step 5: Solve for x
    x = 41,393,648,668.84/227,461.54
  6. Step 6: Final answer
    x = 181,980.87

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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.