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Finding the Fourth Proportional to 106,536.90, 159,694.65 and 43,329.90

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Solution

The fourth proportional to 106,536.90, 159,694.65 and 43,329.90 is: 64,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,536.90 : 159,694.65 = 43,329.90 : x
  2. Step 2: Convert to fraction form
    106,536.90/159,694.65 = 43,329.90/x
  3. Step 3: Cross multiply
    106,536.90x = 159,694.65 × 43,329.90
  4. Step 4: Simplify right side
    106,536.90x = 6,919,553,215.04
  5. Step 5: Solve for x
    x = 6,919,553,215.04/106,536.90
  6. Step 6: Final answer
    x = 64,949.83

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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.