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Finding the Fourth Proportional to 172,240.56, 258,221.43 and 53,850.96

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Solution

The fourth proportional to 172,240.56, 258,221.43 and 53,850.96 is: 80,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,240.56 : 258,221.43 = 53,850.96 : x
  2. Step 2: Convert to fraction form
    172,240.56/258,221.43 = 53,850.96/x
  3. Step 3: Cross multiply
    172,240.56x = 258,221.43 × 53,850.96
  4. Step 4: Simplify right side
    172,240.56x = 13,905,471,898.07
  5. Step 5: Solve for x
    x = 13,905,471,898.07/172,240.56
  6. Step 6: Final answer
    x = 80,732.85

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1.5x scale

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.