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Finding the Fourth Proportional to 118,391.94, 177,568.74 and 43,493.67

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Solution

The fourth proportional to 118,391.94, 177,568.74 and 43,493.67 is: 65,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,391.94 : 177,568.74 = 43,493.67 : x
  2. Step 2: Convert to fraction form
    118,391.94/177,568.74 = 43,493.67/x
  3. Step 3: Cross multiply
    118,391.94x = 177,568.74 × 43,493.67
  4. Step 4: Simplify right side
    118,391.94x = 7,723,116,179.88
  5. Step 5: Solve for x
    x = 7,723,116,179.88/118,391.94
  6. Step 6: Final answer
    x = 65,233.46

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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.