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Finding the Fourth Proportional to 273,896.60, 410,844.90 and 86,907.80

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Solution

The fourth proportional to 273,896.60, 410,844.90 and 86,907.80 is: 130,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,896.60 : 410,844.90 = 86,907.80 : x
  2. Step 2: Convert to fraction form
    273,896.60/410,844.90 = 86,907.80/x
  3. Step 3: Cross multiply
    273,896.60x = 410,844.90 × 86,907.80
  4. Step 4: Simplify right side
    273,896.60x = 35,705,626,400.22
  5. Step 5: Solve for x
    x = 35,705,626,400.22/273,896.60
  6. Step 6: Final answer
    x = 130,361.70

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1.5x scale

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.