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Finding the Fourth Proportional to 118,853.58, 164,019.23 and 65,137.44

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Solution

The fourth proportional to 118,853.58, 164,019.23 and 65,137.44 is: 89,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,853.58 : 164,019.23 = 65,137.44 : x
  2. Step 2: Convert to fraction form
    118,853.58/164,019.23 = 65,137.44/x
  3. Step 3: Cross multiply
    118,853.58x = 164,019.23 × 65,137.44
  4. Step 4: Simplify right side
    118,853.58x = 10,683,792,427.28
  5. Step 5: Solve for x
    x = 10,683,792,427.28/118,853.58
  6. Step 6: Final answer
    x = 89,890.37

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