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Finding the Fourth Proportional to 273,389.60, 409,887.56 and 167,990.80

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Solution

The fourth proportional to 273,389.60, 409,887.56 and 167,990.80 is: 251,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,389.60 : 409,887.56 = 167,990.80 : x
  2. Step 2: Convert to fraction form
    273,389.60/409,887.56 = 167,990.80/x
  3. Step 3: Cross multiply
    273,389.60x = 409,887.56 × 167,990.80
  4. Step 4: Simplify right side
    273,389.60x = 68,857,339,114.45
  5. Step 5: Solve for x
    x = 68,857,339,114.45/273,389.60
  6. Step 6: Final answer
    x = 251,865.25

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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.