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Finding the Fourth Proportional to 111,781,609.80, 167,672,414.70 and 35,112,388.20

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Solution

The fourth proportional to 111,781,609.80, 167,672,414.70 and 35,112,388.20 is: 52,668,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,781,609.80 : 167,672,414.70 = 35,112,388.20 : x
  2. Step 2: Convert to fraction form
    111,781,609.80/167,672,414.70 = 35,112,388.20/x
  3. Step 3: Cross multiply
    111,781,609.80x = 167,672,414.70 × 35,112,388.20
  4. Step 4: Simplify right side
    111,781,609.80x = 5,887,378,915,377,787
  5. Step 5: Solve for x
    x = 5,887,378,915,377,787/111,781,609.80
  6. Step 6: Final answer
    x = 52,668,582.30

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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.