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Finding the Fourth Proportional to 220,706.43, 331,027.79 and 70,927.17

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Solution

The fourth proportional to 220,706.43, 331,027.79 and 70,927.17 is: 106,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,706.43 : 331,027.79 = 70,927.17 : x
  2. Step 2: Convert to fraction form
    220,706.43/331,027.79 = 70,927.17/x
  3. Step 3: Cross multiply
    220,706.43x = 331,027.79 × 70,927.17
  4. Step 4: Simplify right side
    220,706.43x = 23,478,863,981.42
  5. Step 5: Solve for x
    x = 23,478,863,981.42/220,706.43
  6. Step 6: Final answer
    x = 106,380.52

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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.