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Finding the Fourth Proportional to 115,791, 159,791.58 and 62,799

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Solution

The fourth proportional to 115,791, 159,791.58 and 62,799 is: 86,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,791 : 159,791.58 = 62,799 : x
  2. Step 2: Convert to fraction form
    115,791/159,791.58 = 62,799/x
  3. Step 3: Cross multiply
    115,791x = 159,791.58 × 62,799
  4. Step 4: Simplify right side
    115,791x = 10,034,751,432.42
  5. Step 5: Solve for x
    x = 10,034,751,432.42/115,791
  6. Step 6: Final answer
    x = 86,662.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.