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Finding the Fourth Proportional to 273,844.40, 410,809.80 and 86,874.80

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Solution

The fourth proportional to 273,844.40, 410,809.80 and 86,874.80 is: 130,325.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,844.40 : 410,809.80 = 86,874.80 : x
  2. Step 2: Convert to fraction form
    273,844.40/410,809.80 = 86,874.80/x
  3. Step 3: Cross multiply
    273,844.40x = 410,809.80 × 86,874.80
  4. Step 4: Simplify right side
    273,844.40x = 35,689,019,213.04
  5. Step 5: Solve for x
    x = 35,689,019,213.04/273,844.40
  6. Step 6: Final answer
    x = 130,325.90

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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.