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Finding the Fourth Proportional to 246,021.40, 368,981.70 and 68,483.80

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Solution

The fourth proportional to 246,021.40, 368,981.70 and 68,483.80 is: 102,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,021.40 : 368,981.70 = 68,483.80 : x
  2. Step 2: Convert to fraction form
    246,021.40/368,981.70 = 68,483.80/x
  3. Step 3: Cross multiply
    246,021.40x = 368,981.70 × 68,483.80
  4. Step 4: Simplify right side
    246,021.40x = 25,269,268,946.46
  5. Step 5: Solve for x
    x = 25,269,268,946.46/246,021.40
  6. Step 6: Final answer
    x = 102,711.67

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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.