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Finding the Fourth Proportional to 140,611.34, 210,933.45 and 49,398.75

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Solution

The fourth proportional to 140,611.34, 210,933.45 and 49,398.75 is: 74,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,611.34 : 210,933.45 = 49,398.75 : x
  2. Step 2: Convert to fraction form
    140,611.34/210,933.45 = 49,398.75/x
  3. Step 3: Cross multiply
    140,611.34x = 210,933.45 × 49,398.75
  4. Step 4: Simplify right side
    140,611.34x = 10,419,848,674.96
  5. Step 5: Solve for x
    x = 10,419,848,674.96/140,611.34
  6. Step 6: Final answer
    x = 74,103.90

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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.