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Finding the Fourth Proportional to 272,964.90, 408,864.15 and 226,308.90

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Solution

The fourth proportional to 272,964.90, 408,864.15 and 226,308.90 is: 338,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,964.90 : 408,864.15 = 226,308.90 : x
  2. Step 2: Convert to fraction form
    272,964.90/408,864.15 = 226,308.90/x
  3. Step 3: Cross multiply
    272,964.90x = 408,864.15 × 226,308.90
  4. Step 4: Simplify right side
    272,964.90x = 92,529,596,035.94
  5. Step 5: Solve for x
    x = 92,529,596,035.94/272,964.90
  6. Step 6: Final answer
    x = 338,979.83

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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.