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Finding the Fourth Proportional to 123,605.34, 170,581.62 and 69,163.62

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Solution

The fourth proportional to 123,605.34, 170,581.62 and 69,163.62 is: 95,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,605.34 : 170,581.62 = 69,163.62 : x
  2. Step 2: Convert to fraction form
    123,605.34/170,581.62 = 69,163.62/x
  3. Step 3: Cross multiply
    123,605.34x = 170,581.62 × 69,163.62
  4. Step 4: Simplify right side
    123,605.34x = 11,798,042,344.66
  5. Step 5: Solve for x
    x = 11,798,042,344.66/123,605.34
  6. Step 6: Final answer
    x = 95,449.29

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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.