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Finding the Fourth Proportional to 192,866.37, 289,345.41 and 80,484.14

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Solution

The fourth proportional to 192,866.37, 289,345.41 and 80,484.14 is: 120,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,866.37 : 289,345.41 = 80,484.14 : x
  2. Step 2: Convert to fraction form
    192,866.37/289,345.41 = 80,484.14/x
  3. Step 3: Cross multiply
    192,866.37x = 289,345.41 × 80,484.14
  4. Step 4: Simplify right side
    192,866.37x = 23,287,715,040.07
  5. Step 5: Solve for x
    x = 23,287,715,040.07/192,866.37
  6. Step 6: Final answer
    x = 120,745.34

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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.