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Finding the Fourth Proportional to 242,843.60, 364,276.20 and 82,917.20

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Solution

The fourth proportional to 242,843.60, 364,276.20 and 82,917.20 is: 124,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,843.60 : 364,276.20 = 82,917.20 : x
  2. Step 2: Convert to fraction form
    242,843.60/364,276.20 = 82,917.20/x
  3. Step 3: Cross multiply
    242,843.60x = 364,276.20 × 82,917.20
  4. Step 4: Simplify right side
    242,843.60x = 30,204,762,530.64
  5. Step 5: Solve for x
    x = 30,204,762,530.64/242,843.60
  6. Step 6: Final answer
    x = 124,379.49

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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.