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Finding the Fourth Proportional to 324,997.03, 487,506.28 and 111,762.81

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Solution

The fourth proportional to 324,997.03, 487,506.28 and 111,762.81 is: 167,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,997.03 : 487,506.28 = 111,762.81 : x
  2. Step 2: Convert to fraction form
    324,997.03/487,506.28 = 111,762.81/x
  3. Step 3: Cross multiply
    324,997.03x = 487,506.28 × 111,762.81
  4. Step 4: Simplify right side
    324,997.03x = 54,485,071,745.45
  5. Step 5: Solve for x
    x = 54,485,071,745.45/324,997.03
  6. Step 6: Final answer
    x = 167,647.91

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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.