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Finding the Fourth Proportional to 188,627.49, 282,959.73 and 68,717.03

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Solution

The fourth proportional to 188,627.49, 282,959.73 and 68,717.03 is: 103,082.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,627.49 : 282,959.73 = 68,717.03 : x
  2. Step 2: Convert to fraction form
    188,627.49/282,959.73 = 68,717.03/x
  3. Step 3: Cross multiply
    188,627.49x = 282,959.73 × 68,717.03
  4. Step 4: Simplify right side
    188,627.49x = 19,444,150,840.40
  5. Step 5: Solve for x
    x = 19,444,150,840.40/188,627.49
  6. Step 6: Final answer
    x = 103,082.28

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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.