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Finding the Fourth Proportional to 194,989.99, 292,426.87 and 82,668.41

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Solution

The fourth proportional to 194,989.99, 292,426.87 and 82,668.41 is: 123,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,989.99 : 292,426.87 = 82,668.41 : x
  2. Step 2: Convert to fraction form
    194,989.99/292,426.87 = 82,668.41/x
  3. Step 3: Cross multiply
    194,989.99x = 292,426.87 × 82,668.41
  4. Step 4: Simplify right side
    194,989.99x = 24,174,462,715.37
  5. Step 5: Solve for x
    x = 24,174,462,715.37/194,989.99
  6. Step 6: Final answer
    x = 123,977.97

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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.