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Finding the Fourth Proportional to 273,009.85, 376,986.23 and 171,206.53

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Solution

The fourth proportional to 273,009.85, 376,986.23 and 171,206.53 is: 236,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,009.85 : 376,986.23 = 171,206.53 : x
  2. Step 2: Convert to fraction form
    273,009.85/376,986.23 = 171,206.53/x
  3. Step 3: Cross multiply
    273,009.85x = 376,986.23 × 171,206.53
  4. Step 4: Simplify right side
    273,009.85x = 64,542,503,440.05
  5. Step 5: Solve for x
    x = 64,542,503,440.05/273,009.85
  6. Step 6: Final answer
    x = 236,410.90

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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.