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Finding the Fourth Proportional to 171,516.88, 257,302.59 and 53,163.73

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Solution

The fourth proportional to 171,516.88, 257,302.59 and 53,163.73 is: 79,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,516.88 : 257,302.59 = 53,163.73 : x
  2. Step 2: Convert to fraction form
    171,516.88/257,302.59 = 53,163.73/x
  3. Step 3: Cross multiply
    171,516.88x = 257,302.59 × 53,163.73
  4. Step 4: Simplify right side
    171,516.88x = 13,679,165,423.06
  5. Step 5: Solve for x
    x = 13,679,165,423.06/171,516.88
  6. Step 6: Final answer
    x = 79,754.05

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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.