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Finding the Fourth Proportional to 166,912.02, 250,369.11 and 42,253.02

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Solution

The fourth proportional to 166,912.02, 250,369.11 and 42,253.02 is: 63,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,912.02 : 250,369.11 = 42,253.02 : x
  2. Step 2: Convert to fraction form
    166,912.02/250,369.11 = 42,253.02/x
  3. Step 3: Cross multiply
    166,912.02x = 250,369.11 × 42,253.02
  4. Step 4: Simplify right side
    166,912.02x = 10,578,851,012.21
  5. Step 5: Solve for x
    x = 10,578,851,012.21/166,912.02
  6. Step 6: Final answer
    x = 63,379.80

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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.