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Finding the Fourth Proportional to 339,595.56, 509,495.22 and 137,087.46

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Solution

The fourth proportional to 339,595.56, 509,495.22 and 137,087.46 is: 205,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,595.56 : 509,495.22 = 137,087.46 : x
  2. Step 2: Convert to fraction form
    339,595.56/509,495.22 = 137,087.46/x
  3. Step 3: Cross multiply
    339,595.56x = 509,495.22 × 137,087.46
  4. Step 4: Simplify right side
    339,595.56x = 69,845,405,591.94
  5. Step 5: Solve for x
    x = 69,845,405,591.94/339,595.56
  6. Step 6: Final answer
    x = 205,672.32

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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.