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Finding the Fourth Proportional to 118,828.80, 178,243.20 and 95,500.80

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Solution

The fourth proportional to 118,828.80, 178,243.20 and 95,500.80 is: 143,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,828.80 : 178,243.20 = 95,500.80 : x
  2. Step 2: Convert to fraction form
    118,828.80/178,243.20 = 95,500.80/x
  3. Step 3: Cross multiply
    118,828.80x = 178,243.20 × 95,500.80
  4. Step 4: Simplify right side
    118,828.80x = 17,022,368,194.56
  5. Step 5: Solve for x
    x = 17,022,368,194.56/118,828.80
  6. Step 6: Final answer
    x = 143,251.20

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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.