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Finding the Fourth Proportional to 160,839.23, 221,940.23 and 89,201.30

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Solution

The fourth proportional to 160,839.23, 221,940.23 and 89,201.30 is: 123,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,839.23 : 221,940.23 = 89,201.30 : x
  2. Step 2: Convert to fraction form
    160,839.23/221,940.23 = 89,201.30/x
  3. Step 3: Cross multiply
    160,839.23x = 221,940.23 × 89,201.30
  4. Step 4: Simplify right side
    160,839.23x = 19,797,355,482.59
  5. Step 5: Solve for x
    x = 19,797,355,482.59/160,839.23
  6. Step 6: Final answer
    x = 123,087.86

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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.