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Finding the Fourth Proportional to 123,238.44, 170,069.10 and 69,523.32

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Solution

The fourth proportional to 123,238.44, 170,069.10 and 69,523.32 is: 95,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,238.44 : 170,069.10 = 69,523.32 : x
  2. Step 2: Convert to fraction form
    123,238.44/170,069.10 = 69,523.32/x
  3. Step 3: Cross multiply
    123,238.44x = 170,069.10 × 69,523.32
  4. Step 4: Simplify right side
    123,238.44x = 11,823,768,461.41
  5. Step 5: Solve for x
    x = 11,823,768,461.41/123,238.44
  6. Step 6: Final answer
    x = 95,942.21

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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.