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Finding the Fourth Proportional to 148,506.80, 222,738.60 and 43,314.80

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Solution

The fourth proportional to 148,506.80, 222,738.60 and 43,314.80 is: 64,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,506.80 : 222,738.60 = 43,314.80 : x
  2. Step 2: Convert to fraction form
    148,506.80/222,738.60 = 43,314.80/x
  3. Step 3: Cross multiply
    148,506.80x = 222,738.60 × 43,314.80
  4. Step 4: Simplify right side
    148,506.80x = 9,647,877,911.28
  5. Step 5: Solve for x
    x = 9,647,877,911.28/148,506.80
  6. Step 6: Final answer
    x = 64,965.90

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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.