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Finding the Fourth Proportional to 277,080.36, 415,471.50 and 143,629.80

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Solution

The fourth proportional to 277,080.36, 415,471.50 and 143,629.80 is: 215,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,080.36 : 415,471.50 = 143,629.80 : x
  2. Step 2: Convert to fraction form
    277,080.36/415,471.50 = 143,629.80/x
  3. Step 3: Cross multiply
    277,080.36x = 415,471.50 × 143,629.80
  4. Step 4: Simplify right side
    277,080.36x = 59,674,088,450.70
  5. Step 5: Solve for x
    x = 59,674,088,450.70/277,080.36
  6. Step 6: Final answer
    x = 215,367.44

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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.