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Finding the Fourth Proportional to 339,910.62, 509,884.55 and 112,196.94

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Solution

The fourth proportional to 339,910.62, 509,884.55 and 112,196.94 is: 168,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,910.62 : 509,884.55 = 112,196.94 : x
  2. Step 2: Convert to fraction form
    339,910.62/509,884.55 = 112,196.94/x
  3. Step 3: Cross multiply
    339,910.62x = 509,884.55 × 112,196.94
  4. Step 4: Simplify right side
    339,910.62x = 57,207,486,263.28
  5. Step 5: Solve for x
    x = 57,207,486,263.28/339,910.62
  6. Step 6: Final answer
    x = 168,301.56

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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.