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Finding the Fourth Proportional to 181,055.01, 271,589.82 and 86,236.41

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Solution

The fourth proportional to 181,055.01, 271,589.82 and 86,236.41 is: 129,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,055.01 : 271,589.82 = 86,236.41 : x
  2. Step 2: Convert to fraction form
    181,055.01/271,589.82 = 86,236.41/x
  3. Step 3: Cross multiply
    181,055.01x = 271,589.82 × 86,236.41
  4. Step 4: Simplify right side
    181,055.01x = 23,420,931,069.35
  5. Step 5: Solve for x
    x = 23,420,931,069.35/181,055.01
  6. Step 6: Final answer
    x = 129,358.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.