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Finding the Fourth Proportional to 111,738.65, 154,202.36 and 60,754.80

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Solution

The fourth proportional to 111,738.65, 154,202.36 and 60,754.80 is: 83,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,738.65 : 154,202.36 = 60,754.80 : x
  2. Step 2: Convert to fraction form
    111,738.65/154,202.36 = 60,754.80/x
  3. Step 3: Cross multiply
    111,738.65x = 154,202.36 × 60,754.80
  4. Step 4: Simplify right side
    111,738.65x = 9,368,533,552.99
  5. Step 5: Solve for x
    x = 9,368,533,552.99/111,738.65
  6. Step 6: Final answer
    x = 83,843.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.