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Finding the Fourth Proportional to 203,847.03, 305,694 and 70,695.18

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Solution

The fourth proportional to 203,847.03, 305,694 and 70,695.18 is: 106,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,847.03 : 305,694 = 70,695.18 : x
  2. Step 2: Convert to fraction form
    203,847.03/305,694 = 70,695.18/x
  3. Step 3: Cross multiply
    203,847.03x = 305,694 × 70,695.18
  4. Step 4: Simplify right side
    203,847.03x = 21,611,092,354.92
  5. Step 5: Solve for x
    x = 21,611,092,354.92/203,847.03
  6. Step 6: Final answer
    x = 106,016.22

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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.