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Finding the Fourth Proportional to 273,405.60, 409,911.56 and 168,006.80

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Solution

The fourth proportional to 273,405.60, 409,911.56 and 168,006.80 is: 251,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,405.60 : 409,911.56 = 168,006.80 : x
  2. Step 2: Convert to fraction form
    273,405.60/409,911.56 = 168,006.80/x
  3. Step 3: Cross multiply
    273,405.60x = 409,911.56 × 168,006.80
  4. Step 4: Simplify right side
    273,405.60x = 68,867,929,478.61
  5. Step 5: Solve for x
    x = 68,867,929,478.61/273,405.60
  6. Step 6: Final answer
    x = 251,889.24

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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.