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Finding the Fourth Proportional to 101,169.23, 139,669.45 and 60,892.88

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Solution

The fourth proportional to 101,169.23, 139,669.45 and 60,892.88 is: 84,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,169.23 : 139,669.45 = 60,892.88 : x
  2. Step 2: Convert to fraction form
    101,169.23/139,669.45 = 60,892.88/x
  3. Step 3: Cross multiply
    101,169.23x = 139,669.45 × 60,892.88
  4. Step 4: Simplify right side
    101,169.23x = 8,504,874,207.94
  5. Step 5: Solve for x
    x = 8,504,874,207.94/101,169.23
  6. Step 6: Final answer
    x = 84,065.82

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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.