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Finding the Fourth Proportional to 166,013.40, 248,979.60 and 47,672.40

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Solution

The fourth proportional to 166,013.40, 248,979.60 and 47,672.40 is: 71,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,013.40 : 248,979.60 = 47,672.40 : x
  2. Step 2: Convert to fraction form
    166,013.40/248,979.60 = 47,672.40/x
  3. Step 3: Cross multiply
    166,013.40x = 248,979.60 × 47,672.40
  4. Step 4: Simplify right side
    166,013.40x = 11,869,455,083.04
  5. Step 5: Solve for x
    x = 11,869,455,083.04/166,013.40
  6. Step 6: Final answer
    x = 71,496.97

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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.