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Finding the Fourth Proportional to 181,361.01, 250,273.21 and 100,786.47

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Solution

The fourth proportional to 181,361.01, 250,273.21 and 100,786.47 is: 139,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,361.01 : 250,273.21 = 100,786.47 : x
  2. Step 2: Convert to fraction form
    181,361.01/250,273.21 = 100,786.47/x
  3. Step 3: Cross multiply
    181,361.01x = 250,273.21 × 100,786.47
  4. Step 4: Simplify right side
    181,361.01x = 25,224,153,371.47
  5. Step 5: Solve for x
    x = 25,224,153,371.47/181,361.01
  6. Step 6: Final answer
    x = 139,082.56

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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.