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Finding the Fourth Proportional to 111,912.25, 167,868.40 and 37,012.30

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Solution

The fourth proportional to 111,912.25, 167,868.40 and 37,012.30 is: 55,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,912.25 : 167,868.40 = 37,012.30 : x
  2. Step 2: Convert to fraction form
    111,912.25/167,868.40 = 37,012.30/x
  3. Step 3: Cross multiply
    111,912.25x = 167,868.40 × 37,012.30
  4. Step 4: Simplify right side
    111,912.25x = 6,213,195,581.32
  5. Step 5: Solve for x
    x = 6,213,195,581.32/111,912.25
  6. Step 6: Final answer
    x = 55,518.46

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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.