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Finding the Fourth Proportional to 115,081.65, 172,608.44 and 30,848.13

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Solution

The fourth proportional to 115,081.65, 172,608.44 and 30,848.13 is: 46,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,081.65 : 172,608.44 = 30,848.13 : x
  2. Step 2: Convert to fraction form
    115,081.65/172,608.44 = 30,848.13/x
  3. Step 3: Cross multiply
    115,081.65x = 172,608.44 × 30,848.13
  4. Step 4: Simplify right side
    115,081.65x = 5,324,647,441.98
  5. Step 5: Solve for x
    x = 5,324,647,441.98/115,081.65
  6. Step 6: Final answer
    x = 46,268.43

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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.