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Finding the Fourth Proportional to 194,516.70, 291,674.34 and 74,537.88

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Solution

The fourth proportional to 194,516.70, 291,674.34 and 74,537.88 is: 111,768.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,516.70 : 291,674.34 = 74,537.88 : x
  2. Step 2: Convert to fraction form
    194,516.70/291,674.34 = 74,537.88/x
  3. Step 3: Cross multiply
    194,516.70x = 291,674.34 × 74,537.88
  4. Step 4: Simplify right side
    194,516.70x = 21,740,786,954.00
  5. Step 5: Solve for x
    x = 21,740,786,954.00/194,516.70
  6. Step 6: Final answer
    x = 111,768.23

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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.