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Finding the Fourth Proportional to 179,797.20, 269,436.60 and 79,875.60

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Solution

The fourth proportional to 179,797.20, 269,436.60 and 79,875.60 is: 119,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,797.20 : 269,436.60 = 79,875.60 : x
  2. Step 2: Convert to fraction form
    179,797.20/269,436.60 = 79,875.60/x
  3. Step 3: Cross multiply
    179,797.20x = 269,436.60 × 79,875.60
  4. Step 4: Simplify right side
    179,797.20x = 21,521,410,086.96
  5. Step 5: Solve for x
    x = 21,521,410,086.96/179,797.20
  6. Step 6: Final answer
    x = 119,698.25

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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.