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Finding the Fourth Proportional to 118,996.86, 178,670.25 and 49,012.86

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Solution

The fourth proportional to 118,996.86, 178,670.25 and 49,012.86 is: 73,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,996.86 : 178,670.25 = 49,012.86 : x
  2. Step 2: Convert to fraction form
    118,996.86/178,670.25 = 49,012.86/x
  3. Step 3: Cross multiply
    118,996.86x = 178,670.25 × 49,012.86
  4. Step 4: Simplify right side
    118,996.86x = 8,757,139,704.35
  5. Step 5: Solve for x
    x = 8,757,139,704.35/118,996.86
  6. Step 6: Final answer
    x = 73,591.35

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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.