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Finding the Fourth Proportional to 104,489.94, 144,219.06 and 68,683.26

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Solution

The fourth proportional to 104,489.94, 144,219.06 and 68,683.26 is: 94,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,489.94 : 144,219.06 = 68,683.26 : x
  2. Step 2: Convert to fraction form
    104,489.94/144,219.06 = 68,683.26/x
  3. Step 3: Cross multiply
    104,489.94x = 144,219.06 × 68,683.26
  4. Step 4: Simplify right side
    104,489.94x = 9,905,435,194.94
  5. Step 5: Solve for x
    x = 9,905,435,194.94/104,489.94
  6. Step 6: Final answer
    x = 94,797.98

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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.