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Finding the Fourth Proportional to 139,522.44, 209,278.96 and 60,636.67

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Solution

The fourth proportional to 139,522.44, 209,278.96 and 60,636.67 is: 90,952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,522.44 : 209,278.96 = 60,636.67 : x
  2. Step 2: Convert to fraction form
    139,522.44/209,278.96 = 60,636.67/x
  3. Step 3: Cross multiply
    139,522.44x = 209,278.96 × 60,636.67
  4. Step 4: Simplify right side
    139,522.44x = 12,689,979,235.46
  5. Step 5: Solve for x
    x = 12,689,979,235.46/139,522.44
  6. Step 6: Final answer
    x = 90,952.97

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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.