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Finding the Fourth Proportional to 146,350.80, 219,007.80 and 99,694.80

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Solution

The fourth proportional to 146,350.80, 219,007.80 and 99,694.80 is: 149,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,350.80 : 219,007.80 = 99,694.80 : x
  2. Step 2: Convert to fraction form
    146,350.80/219,007.80 = 99,694.80/x
  3. Step 3: Cross multiply
    146,350.80x = 219,007.80 × 99,694.80
  4. Step 4: Simplify right side
    146,350.80x = 21,833,938,819.44
  5. Step 5: Solve for x
    x = 21,833,938,819.44/146,350.80
  6. Step 6: Final answer
    x = 149,189.06

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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.