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Finding the Fourth Proportional to 273,166.20, 409,311.90 and 173,147.40

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Solution

The fourth proportional to 273,166.20, 409,311.90 and 173,147.40 is: 259,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,166.20 : 409,311.90 = 173,147.40 : x
  2. Step 2: Convert to fraction form
    273,166.20/409,311.90 = 173,147.40/x
  3. Step 3: Cross multiply
    273,166.20x = 409,311.90 × 173,147.40
  4. Step 4: Simplify right side
    273,166.20x = 70,871,291,274.06
  5. Step 5: Solve for x
    x = 70,871,291,274.06/273,166.20
  6. Step 6: Final answer
    x = 259,443.85

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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.