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Finding the Fourth Proportional to 105,791.60, 158,691.24 and 35,671.52

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Solution

The fourth proportional to 105,791.60, 158,691.24 and 35,671.52 is: 53,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,791.60 : 158,691.24 = 35,671.52 : x
  2. Step 2: Convert to fraction form
    105,791.60/158,691.24 = 35,671.52/x
  3. Step 3: Cross multiply
    105,791.60x = 158,691.24 × 35,671.52
  4. Step 4: Simplify right side
    105,791.60x = 5,660,757,741.48
  5. Step 5: Solve for x
    x = 5,660,757,741.48/105,791.60
  6. Step 6: Final answer
    x = 53,508.57

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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.