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Finding the Fourth Proportional to 194,469.20, 291,358.20 and 166,821.20

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Solution

The fourth proportional to 194,469.20, 291,358.20 and 166,821.20 is: 249,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,469.20 : 291,358.20 = 166,821.20 : x
  2. Step 2: Convert to fraction form
    194,469.20/291,358.20 = 166,821.20/x
  3. Step 3: Cross multiply
    194,469.20x = 291,358.20 × 166,821.20
  4. Step 4: Simplify right side
    194,469.20x = 48,604,724,553.84
  5. Step 5: Solve for x
    x = 48,604,724,553.84/194,469.20
  6. Step 6: Final answer
    x = 249,935.33

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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.