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Finding the Fourth Proportional to 123,801.64, 170,846.26 and 67,213.02

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Solution

The fourth proportional to 123,801.64, 170,846.26 and 67,213.02 is: 92,753.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,801.64 : 170,846.26 = 67,213.02 : x
  2. Step 2: Convert to fraction form
    123,801.64/170,846.26 = 67,213.02/x
  3. Step 3: Cross multiply
    123,801.64x = 170,846.26 × 67,213.02
  4. Step 4: Simplify right side
    123,801.64x = 11,483,093,090.31
  5. Step 5: Solve for x
    x = 11,483,093,090.31/123,801.64
  6. Step 6: Final answer
    x = 92,753.97

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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.