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Finding the Fourth Proportional to 108,071.88, 162,115.60 and 41,512

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Solution

The fourth proportional to 108,071.88, 162,115.60 and 41,512 is: 62,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,071.88 : 162,115.60 = 41,512 : x
  2. Step 2: Convert to fraction form
    108,071.88/162,115.60 = 41,512/x
  3. Step 3: Cross multiply
    108,071.88x = 162,115.60 × 41,512
  4. Step 4: Simplify right side
    108,071.88x = 6,729,742,787.20
  5. Step 5: Solve for x
    x = 6,729,742,787.20/108,071.88
  6. Step 6: Final answer
    x = 62,270.99

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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.