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Finding the Fourth Proportional to 273,121.20, 409,244.40 and 173,102.40

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Solution

The fourth proportional to 273,121.20, 409,244.40 and 173,102.40 is: 259,376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,121.20 : 409,244.40 = 173,102.40 : x
  2. Step 2: Convert to fraction form
    273,121.20/409,244.40 = 173,102.40/x
  3. Step 3: Cross multiply
    273,121.20x = 409,244.40 × 173,102.40
  4. Step 4: Simplify right side
    273,121.20x = 70,841,187,826.56
  5. Step 5: Solve for x
    x = 70,841,187,826.56/273,121.20
  6. Step 6: Final answer
    x = 259,376.38

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1.5x scale

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.