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Finding the Fourth Proportional to 273,638.40, 410,716.80 and 168,662.40

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Solution

The fourth proportional to 273,638.40, 410,716.80 and 168,662.40 is: 253,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,638.40 : 410,716.80 = 168,662.40 : x
  2. Step 2: Convert to fraction form
    273,638.40/410,716.80 = 168,662.40/x
  3. Step 3: Cross multiply
    273,638.40x = 410,716.80 × 168,662.40
  4. Step 4: Simplify right side
    273,638.40x = 69,272,481,208.32
  5. Step 5: Solve for x
    x = 69,272,481,208.32/273,638.40
  6. Step 6: Final answer
    x = 253,153.36

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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.