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Finding the Fourth Proportional to 106,486.93, 159,791.45 and 43,295.38

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Solution

The fourth proportional to 106,486.93, 159,791.45 and 43,295.38 is: 64,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,486.93 : 159,791.45 = 43,295.38 : x
  2. Step 2: Convert to fraction form
    106,486.93/159,791.45 = 43,295.38/x
  3. Step 3: Cross multiply
    106,486.93x = 159,791.45 × 43,295.38
  4. Step 4: Simplify right side
    106,486.93x = 6,918,231,548.50
  5. Step 5: Solve for x
    x = 6,918,231,548.50/106,486.93
  6. Step 6: Final answer
    x = 64,967.89

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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.