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Finding the Fourth Proportional to 111,750.99, 167,736.65 and 82,085.55

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Solution

The fourth proportional to 111,750.99, 167,736.65 and 82,085.55 is: 123,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,750.99 : 167,736.65 = 82,085.55 : x
  2. Step 2: Convert to fraction form
    111,750.99/167,736.65 = 82,085.55/x
  3. Step 3: Cross multiply
    111,750.99x = 167,736.65 × 82,085.55
  4. Step 4: Simplify right side
    111,750.99x = 13,768,754,759.98
  5. Step 5: Solve for x
    x = 13,768,754,759.98/111,750.99
  6. Step 6: Final answer
    x = 123,209.24

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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.