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Finding the Fourth Proportional to 242,662.60, 364,004.70 and 82,736.20

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Solution

The fourth proportional to 242,662.60, 364,004.70 and 82,736.20 is: 124,107.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,662.60 : 364,004.70 = 82,736.20 : x
  2. Step 2: Convert to fraction form
    242,662.60/364,004.70 = 82,736.20/x
  3. Step 3: Cross multiply
    242,662.60x = 364,004.70 × 82,736.20
  4. Step 4: Simplify right side
    242,662.60x = 30,116,365,660.14
  5. Step 5: Solve for x
    x = 30,116,365,660.14/242,662.60
  6. Step 6: Final answer
    x = 124,107.98

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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.