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Finding the Fourth Proportional to 105,791.20, 158,587.02 and 35,621.44

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Solution

The fourth proportional to 105,791.20, 158,587.02 and 35,621.44 is: 53,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,791.20 : 158,587.02 = 35,621.44 : x
  2. Step 2: Convert to fraction form
    105,791.20/158,587.02 = 35,621.44/x
  3. Step 3: Cross multiply
    105,791.20x = 158,587.02 × 35,621.44
  4. Step 4: Simplify right side
    105,791.20x = 5,649,098,017.71
  5. Step 5: Solve for x
    x = 5,649,098,017.71/105,791.20
  6. Step 6: Final answer
    x = 53,398.56

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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.