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Finding the Fourth Proportional to 192,859.56, 266,123.44 and 111,186.90

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Solution

The fourth proportional to 192,859.56, 266,123.44 and 111,186.90 is: 153,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,859.56 : 266,123.44 = 111,186.90 : x
  2. Step 2: Convert to fraction form
    192,859.56/266,123.44 = 111,186.90/x
  3. Step 3: Cross multiply
    192,859.56x = 266,123.44 × 111,186.90
  4. Step 4: Simplify right side
    192,859.56x = 29,589,440,310.94
  5. Step 5: Solve for x
    x = 29,589,440,310.94/192,859.56
  6. Step 6: Final answer
    x = 153,424.80

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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.