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Finding the Fourth Proportional to 118,986.60, 178,566.22 and 95,891.88

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Solution

The fourth proportional to 118,986.60, 178,566.22 and 95,891.88 is: 143,907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,986.60 : 178,566.22 = 95,891.88 : x
  2. Step 2: Convert to fraction form
    118,986.60/178,566.22 = 95,891.88/x
  3. Step 3: Cross multiply
    118,986.60x = 178,566.22 × 95,891.88
  4. Step 4: Simplify right side
    118,986.60x = 17,123,050,540.29
  5. Step 5: Solve for x
    x = 17,123,050,540.29/118,986.60
  6. Step 6: Final answer
    x = 143,907.39

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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.