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Finding the Fourth Proportional to 166,920.71, 250,206.11 and 61,672.55

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Solution

The fourth proportional to 166,920.71, 250,206.11 and 61,672.55 is: 92,444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,920.71 : 250,206.11 = 61,672.55 : x
  2. Step 2: Convert to fraction form
    166,920.71/250,206.11 = 61,672.55/x
  3. Step 3: Cross multiply
    166,920.71x = 250,206.11 × 61,672.55
  4. Step 4: Simplify right side
    166,920.71x = 15,430,848,520.92
  5. Step 5: Solve for x
    x = 15,430,848,520.92/166,920.71
  6. Step 6: Final answer
    x = 92,444.18

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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.