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Finding the Fourth Proportional to 224,348.43, 309,601.80 and 122,376.11

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Solution

The fourth proportional to 224,348.43, 309,601.80 and 122,376.11 is: 168,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,348.43 : 309,601.80 = 122,376.11 : x
  2. Step 2: Convert to fraction form
    224,348.43/309,601.80 = 122,376.11/x
  3. Step 3: Cross multiply
    224,348.43x = 309,601.80 × 122,376.11
  4. Step 4: Simplify right side
    224,348.43x = 37,887,863,321.12
  5. Step 5: Solve for x
    x = 37,887,863,321.12/224,348.43
  6. Step 6: Final answer
    x = 168,879.56

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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.