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Finding the Fourth Proportional to 180,627.66, 270,979.53 and 68,305.39

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Solution

The fourth proportional to 180,627.66, 270,979.53 and 68,305.39 is: 102,472.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,627.66 : 270,979.53 = 68,305.39 : x
  2. Step 2: Convert to fraction form
    180,627.66/270,979.53 = 68,305.39/x
  3. Step 3: Cross multiply
    180,627.66x = 270,979.53 × 68,305.39
  4. Step 4: Simplify right side
    180,627.66x = 18,509,362,883.53
  5. Step 5: Solve for x
    x = 18,509,362,883.53/180,627.66
  6. Step 6: Final answer
    x = 102,472.47

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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.