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Finding the Fourth Proportional to 180,391.41, 248,940.59 and 99,824.45

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Solution

The fourth proportional to 180,391.41, 248,940.59 and 99,824.45 is: 137,757.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,391.41 : 248,940.59 = 99,824.45 : x
  2. Step 2: Convert to fraction form
    180,391.41/248,940.59 = 99,824.45/x
  3. Step 3: Cross multiply
    180,391.41x = 248,940.59 × 99,824.45
  4. Step 4: Simplify right side
    180,391.41x = 24,850,355,735.60
  5. Step 5: Solve for x
    x = 24,850,355,735.60/180,391.41
  6. Step 6: Final answer
    x = 137,757.98

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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.