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Finding the Fourth Proportional to 181,361.22, 250,273.50 and 100,786.68

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Solution

The fourth proportional to 181,361.22, 250,273.50 and 100,786.68 is: 139,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,361.22 : 250,273.50 = 100,786.68 : x
  2. Step 2: Convert to fraction form
    181,361.22/250,273.50 = 100,786.68/x
  3. Step 3: Cross multiply
    181,361.22x = 250,273.50 × 100,786.68
  4. Step 4: Simplify right side
    181,361.22x = 25,224,235,156.98
  5. Step 5: Solve for x
    x = 25,224,235,156.98/181,361.22
  6. Step 6: Final answer
    x = 139,082.85

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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.