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Finding the Fourth Proportional to 194,620.59, 268,425.29 and 122,974.47

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Solution

The fourth proportional to 194,620.59, 268,425.29 and 122,974.47 is: 169,609.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,620.59 : 268,425.29 = 122,974.47 : x
  2. Step 2: Convert to fraction form
    194,620.59/268,425.29 = 122,974.47/x
  3. Step 3: Cross multiply
    194,620.59x = 268,425.29 × 122,974.47
  4. Step 4: Simplify right side
    194,620.59x = 33,009,458,079.78
  5. Step 5: Solve for x
    x = 33,009,458,079.78/194,620.59
  6. Step 6: Final answer
    x = 169,609.28

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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.