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Finding the Fourth Proportional to 171,760.87, 257,658.98 and 59,440.90

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Solution

The fourth proportional to 171,760.87, 257,658.98 and 59,440.90 is: 89,167.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,760.87 : 257,658.98 = 59,440.90 : x
  2. Step 2: Convert to fraction form
    171,760.87/257,658.98 = 59,440.90/x
  3. Step 3: Cross multiply
    171,760.87x = 257,658.98 × 59,440.90
  4. Step 4: Simplify right side
    171,760.87x = 15,315,481,664.28
  5. Step 5: Solve for x
    x = 15,315,481,664.28/171,760.87
  6. Step 6: Final answer
    x = 89,167.47

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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.