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Finding the Fourth Proportional to 84,653.01, 126,930.92 and 25,471.17

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Solution

The fourth proportional to 84,653.01, 126,930.92 and 25,471.17 is: 38,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,653.01 : 126,930.92 = 25,471.17 : x
  2. Step 2: Convert to fraction form
    84,653.01/126,930.92 = 25,471.17/x
  3. Step 3: Cross multiply
    84,653.01x = 126,930.92 × 25,471.17
  4. Step 4: Simplify right side
    84,653.01x = 3,233,078,914.22
  5. Step 5: Solve for x
    x = 3,233,078,914.22/84,653.01
  6. Step 6: Final answer
    x = 38,192.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.