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Finding the Fourth Proportional to 325,287.36, 487,809.69 and 111,995.03

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Solution

The fourth proportional to 325,287.36, 487,809.69 and 111,995.03 is: 167,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,287.36 : 487,809.69 = 111,995.03 : x
  2. Step 2: Convert to fraction form
    325,287.36/487,809.69 = 111,995.03/x
  3. Step 3: Cross multiply
    325,287.36x = 487,809.69 × 111,995.03
  4. Step 4: Simplify right side
    325,287.36x = 54,632,258,426.79
  5. Step 5: Solve for x
    x = 54,632,258,426.79/325,287.36
  6. Step 6: Final answer
    x = 167,950.76

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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.