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Finding the Fourth Proportional to 242,651.60, 363,912.60 and 84,863.60

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Solution

The fourth proportional to 242,651.60, 363,912.60 and 84,863.60 is: 127,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,651.60 : 363,912.60 = 84,863.60 : x
  2. Step 2: Convert to fraction form
    242,651.60/363,912.60 = 84,863.60/x
  3. Step 3: Cross multiply
    242,651.60x = 363,912.60 × 84,863.60
  4. Step 4: Simplify right side
    242,651.60x = 30,882,933,321.36
  5. Step 5: Solve for x
    x = 30,882,933,321.36/242,651.60
  6. Step 6: Final answer
    x = 127,272.74

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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.