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Finding the Fourth Proportional to 113,906.75, 170,860.13 and 30,800.75

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Solution

The fourth proportional to 113,906.75, 170,860.13 and 30,800.75 is: 46,201.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,906.75 : 170,860.13 = 30,800.75 : x
  2. Step 2: Convert to fraction form
    113,906.75/170,860.13 = 30,800.75/x
  3. Step 3: Cross multiply
    113,906.75x = 170,860.13 × 30,800.75
  4. Step 4: Simplify right side
    113,906.75x = 5,262,619,995.09
  5. Step 5: Solve for x
    x = 5,262,619,995.09/113,906.75
  6. Step 6: Final answer
    x = 46,201.13

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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.