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Finding the Fourth Proportional to 180,889.59, 271,387.44 and 81,027.57

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Solution

The fourth proportional to 180,889.59, 271,387.44 and 81,027.57 is: 121,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,889.59 : 271,387.44 = 81,027.57 : x
  2. Step 2: Convert to fraction form
    180,889.59/271,387.44 = 81,027.57/x
  3. Step 3: Cross multiply
    180,889.59x = 271,387.44 × 81,027.57
  4. Step 4: Simplify right side
    180,889.59x = 21,989,864,791.72
  5. Step 5: Solve for x
    x = 21,989,864,791.72/180,889.59
  6. Step 6: Final answer
    x = 121,565.12

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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.