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Finding the Fourth Proportional to 194,481.38, 291,771.29 and 54,240

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Solution

The fourth proportional to 194,481.38, 291,771.29 and 54,240 is: 81,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,481.38 : 291,771.29 = 54,240 : x
  2. Step 2: Convert to fraction form
    194,481.38/291,771.29 = 54,240/x
  3. Step 3: Cross multiply
    194,481.38x = 291,771.29 × 54,240
  4. Step 4: Simplify right side
    194,481.38x = 15,825,674,905.20
  5. Step 5: Solve for x
    x = 15,825,674,905.20/194,481.38
  6. Step 6: Final answer
    x = 81,373.73

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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.