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Finding the Fourth Proportional to 106,662.63, 159,881.52 and 43,458.33

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Solution

The fourth proportional to 106,662.63, 159,881.52 and 43,458.33 is: 65,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,662.63 : 159,881.52 = 43,458.33 : x
  2. Step 2: Convert to fraction form
    106,662.63/159,881.52 = 43,458.33/x
  3. Step 3: Cross multiply
    106,662.63x = 159,881.52 × 43,458.33
  4. Step 4: Simplify right side
    106,662.63x = 6,948,183,857.06
  5. Step 5: Solve for x
    x = 6,948,183,857.06/106,662.63
  6. Step 6: Final answer
    x = 65,141.69

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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.