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Finding the Fourth Proportional to 180,581.88, 270,948.43 and 79,327.71

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Solution

The fourth proportional to 180,581.88, 270,948.43 and 79,327.71 is: 119,024.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,581.88 : 270,948.43 = 79,327.71 : x
  2. Step 2: Convert to fraction form
    180,581.88/270,948.43 = 79,327.71/x
  3. Step 3: Cross multiply
    180,581.88x = 270,948.43 × 79,327.71
  4. Step 4: Simplify right side
    180,581.88x = 21,493,718,579.15
  5. Step 5: Solve for x
    x = 21,493,718,579.15/180,581.88
  6. Step 6: Final answer
    x = 119,024.78

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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.