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Finding the Fourth Proportional to 273,889.40, 410,834.10 and 155,791.40

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Solution

The fourth proportional to 273,889.40, 410,834.10 and 155,791.40 is: 233,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,889.40 : 410,834.10 = 155,791.40 : x
  2. Step 2: Convert to fraction form
    273,889.40/410,834.10 = 155,791.40/x
  3. Step 3: Cross multiply
    273,889.40x = 410,834.10 × 155,791.40
  4. Step 4: Simplify right side
    273,889.40x = 64,004,419,606.74
  5. Step 5: Solve for x
    x = 64,004,419,606.74/273,889.40
  6. Step 6: Final answer
    x = 233,687.10

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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.