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Finding the Fourth Proportional to 171,909.91, 257,806.46 and 59,563.90

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Solution

The fourth proportional to 171,909.91, 257,806.46 and 59,563.90 is: 89,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,909.91 : 257,806.46 = 59,563.90 : x
  2. Step 2: Convert to fraction form
    171,909.91/257,806.46 = 59,563.90/x
  3. Step 3: Cross multiply
    171,909.91x = 257,806.46 × 59,563.90
  4. Step 4: Simplify right side
    171,909.91x = 15,355,958,202.79
  5. Step 5: Solve for x
    x = 15,355,958,202.79/171,909.91
  6. Step 6: Final answer
    x = 89,325.62

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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.