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Finding the Fourth Proportional to 242,620.60, 363,941.70 and 82,694.20

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Solution

The fourth proportional to 242,620.60, 363,941.70 and 82,694.20 is: 124,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,620.60 : 363,941.70 = 82,694.20 : x
  2. Step 2: Convert to fraction form
    242,620.60/363,941.70 = 82,694.20/x
  3. Step 3: Cross multiply
    242,620.60x = 363,941.70 × 82,694.20
  4. Step 4: Simplify right side
    242,620.60x = 30,095,867,728.14
  5. Step 5: Solve for x
    x = 30,095,867,728.14/242,620.60
  6. Step 6: Final answer
    x = 124,044.98

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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.