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Finding the Fourth Proportional to 174,890.80, 262,336.20 and 118,757.80

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Solution

The fourth proportional to 174,890.80, 262,336.20 and 118,757.80 is: 178,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,890.80 : 262,336.20 = 118,757.80 : x
  2. Step 2: Convert to fraction form
    174,890.80/262,336.20 = 118,757.80/x
  3. Step 3: Cross multiply
    174,890.80x = 262,336.20 × 118,757.80
  4. Step 4: Simplify right side
    174,890.80x = 31,154,469,972.36
  5. Step 5: Solve for x
    x = 31,154,469,972.36/174,890.80
  6. Step 6: Final answer
    x = 178,136.70

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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.