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Finding the Fourth Proportional to 148,544.49, 204,991.49 and 80,561.44

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Solution

The fourth proportional to 148,544.49, 204,991.49 and 80,561.44 is: 111,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,544.49 : 204,991.49 = 80,561.44 : x
  2. Step 2: Convert to fraction form
    148,544.49/204,991.49 = 80,561.44/x
  3. Step 3: Cross multiply
    148,544.49x = 204,991.49 × 80,561.44
  4. Step 4: Simplify right side
    148,544.49x = 16,514,409,622.15
  5. Step 5: Solve for x
    x = 16,514,409,622.15/148,544.49
  6. Step 6: Final answer
    x = 111,174.84

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1.5x scale

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.