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Finding the Fourth Proportional to 113,249.92, 169,872.96 and 39,376

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Solution

The fourth proportional to 113,249.92, 169,872.96 and 39,376 is: 59,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,249.92 : 169,872.96 = 39,376 : x
  2. Step 2: Convert to fraction form
    113,249.92/169,872.96 = 39,376/x
  3. Step 3: Cross multiply
    113,249.92x = 169,872.96 × 39,376
  4. Step 4: Simplify right side
    113,249.92x = 6,688,917,672.96
  5. Step 5: Solve for x
    x = 6,688,917,672.96/113,249.92
  6. Step 6: Final answer
    x = 59,063.33

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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.