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Finding the Fourth Proportional to 114,636.80, 171,898.80 and 67,343.92

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Solution

The fourth proportional to 114,636.80, 171,898.80 and 67,343.92 is: 100,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,636.80 : 171,898.80 = 67,343.92 : x
  2. Step 2: Convert to fraction form
    114,636.80/171,898.80 = 67,343.92/x
  3. Step 3: Cross multiply
    114,636.80x = 171,898.80 × 67,343.92
  4. Step 4: Simplify right side
    114,636.80x = 11,576,339,035.30
  5. Step 5: Solve for x
    x = 11,576,339,035.30/114,636.80
  6. Step 6: Final answer
    x = 100,982.75

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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.