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Finding the Fourth Proportional to 68,010.75, 102,033.41 and 39,954.53

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Solution

The fourth proportional to 68,010.75, 102,033.41 and 39,954.53 is: 59,941.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,010.75 : 102,033.41 = 39,954.53 : x
  2. Step 2: Convert to fraction form
    68,010.75/102,033.41 = 39,954.53/x
  3. Step 3: Cross multiply
    68,010.75x = 102,033.41 × 39,954.53
  4. Step 4: Simplify right side
    68,010.75x = 4,076,696,838.28
  5. Step 5: Solve for x
    x = 4,076,696,838.28/68,010.75
  6. Step 6: Final answer
    x = 59,941.94

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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.