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Finding the Fourth Proportional to 171,466.92, 257,200.40 and 71,572.62

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Solution

The fourth proportional to 171,466.92, 257,200.40 and 71,572.62 is: 107,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,466.92 : 257,200.40 = 71,572.62 : x
  2. Step 2: Convert to fraction form
    171,466.92/257,200.40 = 71,572.62/x
  3. Step 3: Cross multiply
    171,466.92x = 257,200.40 × 71,572.62
  4. Step 4: Simplify right side
    171,466.92x = 18,408,505,385.98
  5. Step 5: Solve for x
    x = 18,408,505,385.98/171,466.92
  6. Step 6: Final answer
    x = 107,358.94

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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.