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Finding the Fourth Proportional to 274,054.40, 411,081.60 and 179,436.80

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Solution

The fourth proportional to 274,054.40, 411,081.60 and 179,436.80 is: 269,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,054.40 : 411,081.60 = 179,436.80 : x
  2. Step 2: Convert to fraction form
    274,054.40/411,081.60 = 179,436.80/x
  3. Step 3: Cross multiply
    274,054.40x = 411,081.60 × 179,436.80
  4. Step 4: Simplify right side
    274,054.40x = 73,763,166,842.88
  5. Step 5: Solve for x
    x = 73,763,166,842.88/274,054.40
  6. Step 6: Final answer
    x = 269,155.20

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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.