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Finding the Fourth Proportional to 112,517.40, 168,800.40 and 33,639.60

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Solution

The fourth proportional to 112,517.40, 168,800.40 and 33,639.60 is: 50,466.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.40 : 168,800.40 = 33,639.60 : x
  2. Step 2: Convert to fraction form
    112,517.40/168,800.40 = 33,639.60/x
  3. Step 3: Cross multiply
    112,517.40x = 168,800.40 × 33,639.60
  4. Step 4: Simplify right side
    112,517.40x = 5,678,377,935.84
  5. Step 5: Solve for x
    x = 5,678,377,935.84/112,517.40
  6. Step 6: Final answer
    x = 50,466.67

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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.