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Finding the Fourth Proportional to 339,939.20, 510,103.20 and 234,833.60

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Solution

The fourth proportional to 339,939.20, 510,103.20 and 234,833.60 is: 352,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,939.20 : 510,103.20 = 234,833.60 : x
  2. Step 2: Convert to fraction form
    339,939.20/510,103.20 = 234,833.60/x
  3. Step 3: Cross multiply
    339,939.20x = 510,103.20 × 234,833.60
  4. Step 4: Simplify right side
    339,939.20x = 119,789,370,827.52
  5. Step 5: Solve for x
    x = 119,789,370,827.52/339,939.20
  6. Step 6: Final answer
    x = 352,384.69

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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.