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Finding the Fourth Proportional to 169,446.32, 253,992.12 and 57,087.71

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Solution

The fourth proportional to 169,446.32, 253,992.12 and 57,087.71 is: 85,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,446.32 : 253,992.12 = 57,087.71 : x
  2. Step 2: Convert to fraction form
    169,446.32/253,992.12 = 57,087.71/x
  3. Step 3: Cross multiply
    169,446.32x = 253,992.12 × 57,087.71
  4. Step 4: Simplify right side
    169,446.32x = 14,499,828,488.85
  5. Step 5: Solve for x
    x = 14,499,828,488.85/169,446.32
  6. Step 6: Final answer
    x = 85,571.81

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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.