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Finding the Fourth Proportional to 281,648.46, 388,675.08 and 166,983.69

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Solution

The fourth proportional to 281,648.46, 388,675.08 and 166,983.69 is: 230,437.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,648.46 : 388,675.08 = 166,983.69 : x
  2. Step 2: Convert to fraction form
    281,648.46/388,675.08 = 166,983.69/x
  3. Step 3: Cross multiply
    281,648.46x = 388,675.08 × 166,983.69
  4. Step 4: Simplify right side
    281,648.46x = 64,902,399,069.45
  5. Step 5: Solve for x
    x = 64,902,399,069.45/281,648.46
  6. Step 6: Final answer
    x = 230,437.61

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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.