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Finding the Fourth Proportional to 107,495.54, 161,313.54 and 40,936.31

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Solution

The fourth proportional to 107,495.54, 161,313.54 and 40,936.31 is: 61,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,495.54 : 161,313.54 = 40,936.31 : x
  2. Step 2: Convert to fraction form
    107,495.54/161,313.54 = 40,936.31/x
  3. Step 3: Cross multiply
    107,495.54x = 161,313.54 × 40,936.31
  4. Step 4: Simplify right side
    107,495.54x = 6,603,581,080.64
  5. Step 5: Solve for x
    x = 6,603,581,080.64/107,495.54
  6. Step 6: Final answer
    x = 61,431.21

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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.