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Finding the Fourth Proportional to 123,012.94, 169,763.52 and 68,568.67

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Solution

The fourth proportional to 123,012.94, 169,763.52 and 68,568.67 is: 94,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,012.94 : 169,763.52 = 68,568.67 : x
  2. Step 2: Convert to fraction form
    123,012.94/169,763.52 = 68,568.67/x
  3. Step 3: Cross multiply
    123,012.94x = 169,763.52 × 68,568.67
  4. Step 4: Simplify right side
    123,012.94x = 11,640,458,780.92
  5. Step 5: Solve for x
    x = 11,640,458,780.92/123,012.94
  6. Step 6: Final answer
    x = 94,627.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.