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Finding the Fourth Proportional to 140,553.37, 210,683.17 and 61,601.05

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Solution

The fourth proportional to 140,553.37, 210,683.17 and 61,601.05 is: 92,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,553.37 : 210,683.17 = 61,601.05 : x
  2. Step 2: Convert to fraction form
    140,553.37/210,683.17 = 61,601.05/x
  3. Step 3: Cross multiply
    140,553.37x = 210,683.17 × 61,601.05
  4. Step 4: Simplify right side
    140,553.37x = 12,978,304,489.33
  5. Step 5: Solve for x
    x = 12,978,304,489.33/140,553.37
  6. Step 6: Final answer
    x = 92,337.20

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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.