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Finding the Fourth Proportional to 110,894.43, 152,874.97 and 79,007.97

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Solution

The fourth proportional to 110,894.43, 152,874.97 and 79,007.97 is: 108,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,894.43 : 152,874.97 = 79,007.97 : x
  2. Step 2: Convert to fraction form
    110,894.43/152,874.97 = 79,007.97/x
  3. Step 3: Cross multiply
    110,894.43x = 152,874.97 × 79,007.97
  4. Step 4: Simplify right side
    110,894.43x = 12,078,341,043.51
  5. Step 5: Solve for x
    x = 12,078,341,043.51/110,894.43
  6. Step 6: Final answer
    x = 108,917.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.