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Finding the Fourth Proportional to 178,914.70, 267,713.92 and 107,880.94

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Solution

The fourth proportional to 178,914.70, 267,713.92 and 107,880.94 is: 161,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,914.70 : 267,713.92 = 107,880.94 : x
  2. Step 2: Convert to fraction form
    178,914.70/267,713.92 = 107,880.94/x
  3. Step 3: Cross multiply
    178,914.70x = 267,713.92 × 107,880.94
  4. Step 4: Simplify right side
    178,914.70x = 28,881,229,340.68
  5. Step 5: Solve for x
    x = 28,881,229,340.68/178,914.70
  6. Step 6: Final answer
    x = 161,424.57

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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.