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Finding the Fourth Proportional to 171,680.96, 257,635.68 and 70,561.94

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Solution

The fourth proportional to 171,680.96, 257,635.68 and 70,561.94 is: 105,889.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,680.96 : 257,635.68 = 70,561.94 : x
  2. Step 2: Convert to fraction form
    171,680.96/257,635.68 = 70,561.94/x
  3. Step 3: Cross multiply
    171,680.96x = 257,635.68 × 70,561.94
  4. Step 4: Simplify right side
    171,680.96x = 18,179,273,394.02
  5. Step 5: Solve for x
    x = 18,179,273,394.02/171,680.96
  6. Step 6: Final answer
    x = 105,889.86

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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.