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Finding the Fourth Proportional to 275,704.36, 413,611.89 and 125,904.43

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Solution

The fourth proportional to 275,704.36, 413,611.89 and 125,904.43 is: 188,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,704.36 : 413,611.89 = 125,904.43 : x
  2. Step 2: Convert to fraction form
    275,704.36/413,611.89 = 125,904.43/x
  3. Step 3: Cross multiply
    275,704.36x = 413,611.89 × 125,904.43
  4. Step 4: Simplify right side
    275,704.36x = 52,075,569,251.67
  5. Step 5: Solve for x
    x = 52,075,569,251.67/275,704.36
  6. Step 6: Final answer
    x = 188,881.92

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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.