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Finding the Fourth Proportional to 320,688.91, 481,199.34 and 232,668.91

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Solution

The fourth proportional to 320,688.91, 481,199.34 and 232,668.91 is: 349,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,688.91 : 481,199.34 = 232,668.91 : x
  2. Step 2: Convert to fraction form
    320,688.91/481,199.34 = 232,668.91/x
  3. Step 3: Cross multiply
    320,688.91x = 481,199.34 × 232,668.91
  4. Step 4: Simplify right side
    320,688.91x = 111,960,125,930.52
  5. Step 5: Solve for x
    x = 111,960,125,930.52/320,688.91
  6. Step 6: Final answer
    x = 349,123.78

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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.