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Finding the Fourth Proportional to 166,871.78, 250,398.81 and 70,794.17

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Solution

The fourth proportional to 166,871.78, 250,398.81 and 70,794.17 is: 106,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,871.78 : 250,398.81 = 70,794.17 : x
  2. Step 2: Convert to fraction form
    166,871.78/250,398.81 = 70,794.17/x
  3. Step 3: Cross multiply
    166,871.78x = 250,398.81 × 70,794.17
  4. Step 4: Simplify right side
    166,871.78x = 17,726,775,609.94
  5. Step 5: Solve for x
    x = 17,726,775,609.94/166,871.78
  6. Step 6: Final answer
    x = 106,229.92

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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.