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Finding the Fourth Proportional to 111,689.64, 167,562 and 55,556.37

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Solution

The fourth proportional to 111,689.64, 167,562 and 55,556.37 is: 83,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,689.64 : 167,562 = 55,556.37 : x
  2. Step 2: Convert to fraction form
    111,689.64/167,562 = 55,556.37/x
  3. Step 3: Cross multiply
    111,689.64x = 167,562 × 55,556.37
  4. Step 4: Simplify right side
    111,689.64x = 9,309,136,469.94
  5. Step 5: Solve for x
    x = 9,309,136,469.94/111,689.64
  6. Step 6: Final answer
    x = 83,348.25

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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.