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Finding the Fourth Proportional to 108,991.24, 150,481.31 and 97,470.41

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Solution

The fourth proportional to 108,991.24, 150,481.31 and 97,470.41 is: 134,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,991.24 : 150,481.31 = 97,470.41 : x
  2. Step 2: Convert to fraction form
    108,991.24/150,481.31 = 97,470.41/x
  3. Step 3: Cross multiply
    108,991.24x = 150,481.31 × 97,470.41
  4. Step 4: Simplify right side
    108,991.24x = 14,667,474,291.55
  5. Step 5: Solve for x
    x = 14,667,474,291.55/108,991.24
  6. Step 6: Final answer
    x = 134,574.80

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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.