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Finding the Fourth Proportional to 273,405.17, 377,290.31 and 149,221.37

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Solution

The fourth proportional to 273,405.17, 377,290.31 and 149,221.37 is: 205,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,405.17 : 377,290.31 = 149,221.37 : x
  2. Step 2: Convert to fraction form
    273,405.17/377,290.31 = 149,221.37/x
  3. Step 3: Cross multiply
    273,405.17x = 377,290.31 × 149,221.37
  4. Step 4: Simplify right side
    273,405.17x = 56,299,777,143.04
  5. Step 5: Solve for x
    x = 56,299,777,143.04/273,405.17
  6. Step 6: Final answer
    x = 205,920.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.