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Finding the Fourth Proportional to 139,495.56, 209,241.54 and 34,315.44

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Solution

The fourth proportional to 139,495.56, 209,241.54 and 34,315.44 is: 51,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,495.56 : 209,241.54 = 34,315.44 : x
  2. Step 2: Convert to fraction form
    139,495.56/209,241.54 = 34,315.44/x
  3. Step 3: Cross multiply
    139,495.56x = 209,241.54 × 34,315.44
  4. Step 4: Simplify right side
    139,495.56x = 7,180,215,511.38
  5. Step 5: Solve for x
    x = 7,180,215,511.38/139,495.56
  6. Step 6: Final answer
    x = 51,472.72

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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.