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Finding the Fourth Proportional to 181,969.34, 251,136.37 and 109,395.72

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Solution

The fourth proportional to 181,969.34, 251,136.37 and 109,395.72 is: 150,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,969.34 : 251,136.37 = 109,395.72 : x
  2. Step 2: Convert to fraction form
    181,969.34/251,136.37 = 109,395.72/x
  3. Step 3: Cross multiply
    181,969.34x = 251,136.37 × 109,395.72
  4. Step 4: Simplify right side
    181,969.34x = 27,473,244,915.67
  5. Step 5: Solve for x
    x = 27,473,244,915.67/181,969.34
  6. Step 6: Final answer
    x = 150,977.33

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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.