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Finding the Fourth Proportional to 116,819.97, 161,211.39 and 63,104.97

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Solution

The fourth proportional to 116,819.97, 161,211.39 and 63,104.97 is: 87,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,819.97 : 161,211.39 = 63,104.97 : x
  2. Step 2: Convert to fraction form
    116,819.97/161,211.39 = 63,104.97/x
  3. Step 3: Cross multiply
    116,819.97x = 161,211.39 × 63,104.97
  4. Step 4: Simplify right side
    116,819.97x = 10,173,239,929.61
  5. Step 5: Solve for x
    x = 10,173,239,929.61/116,819.97
  6. Step 6: Final answer
    x = 87,084.77

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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.