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Finding the Fourth Proportional to 273,382.40, 410,131.20 and 115,529.60

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Solution

The fourth proportional to 273,382.40, 410,131.20 and 115,529.60 is: 173,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,382.40 : 410,131.20 = 115,529.60 : x
  2. Step 2: Convert to fraction form
    273,382.40/410,131.20 = 115,529.60/x
  3. Step 3: Cross multiply
    273,382.40x = 410,131.20 × 115,529.60
  4. Step 4: Simplify right side
    273,382.40x = 47,382,293,483.52
  5. Step 5: Solve for x
    x = 47,382,293,483.52/273,382.40
  6. Step 6: Final answer
    x = 173,318.74

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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.