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Finding the Fourth Proportional to 118,757.73, 178,007.05 and 43,814.71

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Solution

The fourth proportional to 118,757.73, 178,007.05 and 43,814.71 is: 65,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,757.73 : 178,007.05 = 43,814.71 : x
  2. Step 2: Convert to fraction form
    118,757.73/178,007.05 = 43,814.71/x
  3. Step 3: Cross multiply
    118,757.73x = 178,007.05 × 43,814.71
  4. Step 4: Simplify right side
    118,757.73x = 7,799,327,273.71
  5. Step 5: Solve for x
    x = 7,799,327,273.71/118,757.73
  6. Step 6: Final answer
    x = 65,674.27

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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.