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Finding the Fourth Proportional to 171,871.66, 237,211.39 and 100,251.69

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Solution

The fourth proportional to 171,871.66, 237,211.39 and 100,251.69 is: 138,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,871.66 : 237,211.39 = 100,251.69 : x
  2. Step 2: Convert to fraction form
    171,871.66/237,211.39 = 100,251.69/x
  3. Step 3: Cross multiply
    171,871.66x = 237,211.39 × 100,251.69
  4. Step 4: Simplify right side
    171,871.66x = 23,780,843,749.61
  5. Step 5: Solve for x
    x = 23,780,843,749.61/171,871.66
  6. Step 6: Final answer
    x = 138,363.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.