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Finding the Fourth Proportional to 179,626.60, 269,439.90 and 61,280.20

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Solution

The fourth proportional to 179,626.60, 269,439.90 and 61,280.20 is: 91,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,626.60 : 269,439.90 = 61,280.20 : x
  2. Step 2: Convert to fraction form
    179,626.60/269,439.90 = 61,280.20/x
  3. Step 3: Cross multiply
    179,626.60x = 269,439.90 × 61,280.20
  4. Step 4: Simplify right side
    179,626.60x = 16,511,330,959.98
  5. Step 5: Solve for x
    x = 16,511,330,959.98/179,626.60
  6. Step 6: Final answer
    x = 91,920.30

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1.5x scale

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.