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Finding the Fourth Proportional to 123,982.47, 171,083.88 and 69,536.88

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Solution

The fourth proportional to 123,982.47, 171,083.88 and 69,536.88 is: 95,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,982.47 : 171,083.88 = 69,536.88 : x
  2. Step 2: Convert to fraction form
    123,982.47/171,083.88 = 69,536.88/x
  3. Step 3: Cross multiply
    123,982.47x = 171,083.88 × 69,536.88
  4. Step 4: Simplify right side
    123,982.47x = 11,896,639,233.49
  5. Step 5: Solve for x
    x = 11,896,639,233.49/123,982.47
  6. Step 6: Final answer
    x = 95,954.20

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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.