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Finding the Fourth Proportional to 240,920, 332,469.60 and 134,936

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Solution

The fourth proportional to 240,920, 332,469.60 and 134,936 is: 186,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,920 : 332,469.60 = 134,936 : x
  2. Step 2: Convert to fraction form
    240,920/332,469.60 = 134,936/x
  3. Step 3: Cross multiply
    240,920x = 332,469.60 × 134,936
  4. Step 4: Simplify right side
    240,920x = 44,862,117,945.60
  5. Step 5: Solve for x
    x = 44,862,117,945.60/240,920
  6. Step 6: Final answer
    x = 186,211.68

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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.