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Finding the Fourth Proportional to 110,626.70, 165,940.05 and 66,230.60

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Solution

The fourth proportional to 110,626.70, 165,940.05 and 66,230.60 is: 99,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,626.70 : 165,940.05 = 66,230.60 : x
  2. Step 2: Convert to fraction form
    110,626.70/165,940.05 = 66,230.60/x
  3. Step 3: Cross multiply
    110,626.70x = 165,940.05 × 66,230.60
  4. Step 4: Simplify right side
    110,626.70x = 10,990,309,075.53
  5. Step 5: Solve for x
    x = 10,990,309,075.53/110,626.70
  6. Step 6: Final answer
    x = 99,345.90

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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.