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Finding the Fourth Proportional to 111,907.80, 167,861.70 and 33,021.90

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Solution

The fourth proportional to 111,907.80, 167,861.70 and 33,021.90 is: 49,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,907.80 : 167,861.70 = 33,021.90 : x
  2. Step 2: Convert to fraction form
    111,907.80/167,861.70 = 33,021.90/x
  3. Step 3: Cross multiply
    111,907.80x = 167,861.70 × 33,021.90
  4. Step 4: Simplify right side
    111,907.80x = 5,543,112,271.23
  5. Step 5: Solve for x
    x = 5,543,112,271.23/111,907.80
  6. Step 6: Final answer
    x = 49,532.85

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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.