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Finding the Fourth Proportional to 339,310.56, 508,900.23 and 102,597.78

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Solution

The fourth proportional to 339,310.56, 508,900.23 and 102,597.78 is: 153,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,310.56 : 508,900.23 = 102,597.78 : x
  2. Step 2: Convert to fraction form
    339,310.56/508,900.23 = 102,597.78/x
  3. Step 3: Cross multiply
    339,310.56x = 508,900.23 × 102,597.78
  4. Step 4: Simplify right side
    339,310.56x = 52,212,033,839.49
  5. Step 5: Solve for x
    x = 52,212,033,839.49/339,310.56
  6. Step 6: Final answer
    x = 153,876.83

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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.