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Finding the Fourth Proportional to 273,409.40, 410,171.70 and 115,556.60

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Solution

The fourth proportional to 273,409.40, 410,171.70 and 115,556.60 is: 173,359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,409.40 : 410,171.70 = 115,556.60 : x
  2. Step 2: Convert to fraction form
    273,409.40/410,171.70 = 115,556.60/x
  3. Step 3: Cross multiply
    273,409.40x = 410,171.70 × 115,556.60
  4. Step 4: Simplify right side
    273,409.40x = 47,398,047,068.22
  5. Step 5: Solve for x
    x = 47,398,047,068.22/273,409.40
  6. Step 6: Final answer
    x = 173,359.24

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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.