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Finding the Fourth Proportional to 273,945.65, 410,889.11 and 129,816.68

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Solution

The fourth proportional to 273,945.65, 410,889.11 and 129,816.68 is: 194,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,945.65 : 410,889.11 = 129,816.68 : x
  2. Step 2: Convert to fraction form
    273,945.65/410,889.11 = 129,816.68/x
  3. Step 3: Cross multiply
    273,945.65x = 410,889.11 × 129,816.68
  4. Step 4: Simplify right side
    273,945.65x = 53,340,257,404.83
  5. Step 5: Solve for x
    x = 53,340,257,404.83/273,945.65
  6. Step 6: Final answer
    x = 194,711.10

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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.