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Finding the Fourth Proportional to 275,566.81, 380,304.18 and 154,716.04

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Solution

The fourth proportional to 275,566.81, 380,304.18 and 154,716.04 is: 213,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,566.81 : 380,304.18 = 154,716.04 : x
  2. Step 2: Convert to fraction form
    275,566.81/380,304.18 = 154,716.04/x
  3. Step 3: Cross multiply
    275,566.81x = 380,304.18 × 154,716.04
  4. Step 4: Simplify right side
    275,566.81x = 58,839,156,725.05
  5. Step 5: Solve for x
    x = 58,839,156,725.05/275,566.81
  6. Step 6: Final answer
    x = 213,520.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.