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Finding the Fourth Proportional to 146,767.74, 220,080.39 and 71,800.08

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Solution

The fourth proportional to 146,767.74, 220,080.39 and 71,800.08 is: 107,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,767.74 : 220,080.39 = 71,800.08 : x
  2. Step 2: Convert to fraction form
    146,767.74/220,080.39 = 71,800.08/x
  3. Step 3: Cross multiply
    146,767.74x = 220,080.39 × 71,800.08
  4. Step 4: Simplify right side
    146,767.74x = 15,801,789,608.43
  5. Step 5: Solve for x
    x = 15,801,789,608.43/146,767.74
  6. Step 6: Final answer
    x = 107,665.28

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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.