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Finding the Fourth Proportional to 308,765.76, 426,096.74 and 167,453.76

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Solution

The fourth proportional to 308,765.76, 426,096.74 and 167,453.76 is: 231,086.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,765.76 : 426,096.74 = 167,453.76 : x
  2. Step 2: Convert to fraction form
    308,765.76/426,096.74 = 167,453.76/x
  3. Step 3: Cross multiply
    308,765.76x = 426,096.74 × 167,453.76
  4. Step 4: Simplify right side
    308,765.76x = 71,351,501,236.74
  5. Step 5: Solve for x
    x = 71,351,501,236.74/308,765.76
  6. Step 6: Final answer
    x = 231,086.18

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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.