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Finding the Fourth Proportional to 123,832.18, 170,888.43 and 67,243.57

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Solution

The fourth proportional to 123,832.18, 170,888.43 and 67,243.57 is: 92,796.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,832.18 : 170,888.43 = 67,243.57 : x
  2. Step 2: Convert to fraction form
    123,832.18/170,888.43 = 67,243.57/x
  3. Step 3: Cross multiply
    123,832.18x = 170,888.43 × 67,243.57
  4. Step 4: Simplify right side
    123,832.18x = 11,491,148,104.90
  5. Step 5: Solve for x
    x = 11,491,148,104.90/123,832.18
  6. Step 6: Final answer
    x = 92,796.14

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1.5x scale

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.