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Finding the Fourth Proportional to 167,654.40, 251,773.20 and 162,405.60

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Solution

The fourth proportional to 167,654.40, 251,773.20 and 162,405.60 is: 243,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,654.40 : 251,773.20 = 162,405.60 : x
  2. Step 2: Convert to fraction form
    167,654.40/251,773.20 = 162,405.60/x
  3. Step 3: Cross multiply
    167,654.40x = 251,773.20 × 162,405.60
  4. Step 4: Simplify right side
    167,654.40x = 40,889,377,609.92
  5. Step 5: Solve for x
    x = 40,889,377,609.92/167,654.40
  6. Step 6: Final answer
    x = 243,890.87

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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.