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Finding the Fourth Proportional to 273,611.46, 410,480.40 and 86,622.96

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Solution

The fourth proportional to 273,611.46, 410,480.40 and 86,622.96 is: 129,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,611.46 : 410,480.40 = 86,622.96 : x
  2. Step 2: Convert to fraction form
    273,611.46/410,480.40 = 86,622.96/x
  3. Step 3: Cross multiply
    273,611.46x = 410,480.40 × 86,622.96
  4. Step 4: Simplify right side
    273,611.46x = 35,557,027,269.98
  5. Step 5: Solve for x
    x = 35,557,027,269.98/273,611.46
  6. Step 6: Final answer
    x = 129,954.45

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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.