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Finding the Fourth Proportional to 68,851.62, 94,961.67 and 49,802.85

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Solution

The fourth proportional to 68,851.62, 94,961.67 and 49,802.85 is: 68,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851.62 : 94,961.67 = 49,802.85 : x
  2. Step 2: Convert to fraction form
    68,851.62/94,961.67 = 49,802.85/x
  3. Step 3: Cross multiply
    68,851.62x = 94,961.67 × 49,802.85
  4. Step 4: Simplify right side
    68,851.62x = 4,729,361,806.76
  5. Step 5: Solve for x
    x = 4,729,361,806.76/68,851.62
  6. Step 6: Final answer
    x = 68,689.19

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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.