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Finding the Fourth Proportional to 112,934, 169,404.51 and 41,874.32

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Solution

The fourth proportional to 112,934, 169,404.51 and 41,874.32 is: 62,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,934 : 169,404.51 = 41,874.32 : x
  2. Step 2: Convert to fraction form
    112,934/169,404.51 = 41,874.32/x
  3. Step 3: Cross multiply
    112,934x = 169,404.51 × 41,874.32
  4. Step 4: Simplify right side
    112,934x = 7,093,698,661.18
  5. Step 5: Solve for x
    x = 7,093,698,661.18/112,934
  6. Step 6: Final answer
    x = 62,812.78

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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.