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Finding the Fourth Proportional to 118,850.27, 177,873.53 and 115,651.78

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Solution

The fourth proportional to 118,850.27, 177,873.53 and 115,651.78 is: 173,086.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,850.27 : 177,873.53 = 115,651.78 : x
  2. Step 2: Convert to fraction form
    118,850.27/177,873.53 = 115,651.78/x
  3. Step 3: Cross multiply
    118,850.27x = 177,873.53 × 115,651.78
  4. Step 4: Simplify right side
    118,850.27x = 20,571,390,359.38
  5. Step 5: Solve for x
    x = 20,571,390,359.38/118,850.27
  6. Step 6: Final answer
    x = 173,086.61

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1.5x scale

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.