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Finding the Fourth Proportional to 160,796.23, 221,912.42 and 89,199.32

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Solution

The fourth proportional to 160,796.23, 221,912.42 and 89,199.32 is: 123,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,796.23 : 221,912.42 = 89,199.32 : x
  2. Step 2: Convert to fraction form
    160,796.23/221,912.42 = 89,199.32/x
  3. Step 3: Cross multiply
    160,796.23x = 221,912.42 × 89,199.32
  4. Step 4: Simplify right side
    160,796.23x = 19,794,435,853.99
  5. Step 5: Solve for x
    x = 19,794,435,853.99/160,796.23
  6. Step 6: Final answer
    x = 123,102.62

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1.5x scale

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.