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Finding the Fourth Proportional to 444,089.44, 666,245.12 and 128,546.35

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Solution

The fourth proportional to 444,089.44, 666,245.12 and 128,546.35 is: 192,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,089.44 : 666,245.12 = 128,546.35 : x
  2. Step 2: Convert to fraction form
    444,089.44/666,245.12 = 128,546.35/x
  3. Step 3: Cross multiply
    444,089.44x = 666,245.12 × 128,546.35
  4. Step 4: Simplify right side
    444,089.44x = 85,643,377,037.07
  5. Step 5: Solve for x
    x = 85,643,377,037.07/444,089.44
  6. Step 6: Final answer
    x = 192,851.64

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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.