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Finding the Fourth Proportional to 223,310.70, 308,165.27 and 122,706.54

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Solution

The fourth proportional to 223,310.70, 308,165.27 and 122,706.54 is: 169,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,310.70 : 308,165.27 = 122,706.54 : x
  2. Step 2: Convert to fraction form
    223,310.70/308,165.27 = 122,706.54/x
  3. Step 3: Cross multiply
    223,310.70x = 308,165.27 × 122,706.54
  4. Step 4: Simplify right side
    223,310.70x = 37,813,894,029.87
  5. Step 5: Solve for x
    x = 37,813,894,029.87/223,310.70
  6. Step 6: Final answer
    x = 169,333.10

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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.