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Finding the Fourth Proportional to 188,633.02, 282,967.98 and 68,722.54

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Solution

The fourth proportional to 188,633.02, 282,967.98 and 68,722.54 is: 103,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,633.02 : 282,967.98 = 68,722.54 : x
  2. Step 2: Convert to fraction form
    188,633.02/282,967.98 = 68,722.54/x
  3. Step 3: Cross multiply
    188,633.02x = 282,967.98 × 68,722.54
  4. Step 4: Simplify right side
    188,633.02x = 19,446,278,324.27
  5. Step 5: Solve for x
    x = 19,446,278,324.27/188,633.02
  6. Step 6: Final answer
    x = 103,090.53

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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.