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Finding the Fourth Proportional to 453,654.40, 680,523.98 and 133,806.58

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Solution

The fourth proportional to 453,654.40, 680,523.98 and 133,806.58 is: 200,722.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,654.40 : 680,523.98 = 133,806.58 : x
  2. Step 2: Convert to fraction form
    453,654.40/680,523.98 = 133,806.58/x
  3. Step 3: Cross multiply
    453,654.40x = 680,523.98 × 133,806.58
  4. Step 4: Simplify right side
    453,654.40x = 91,058,586,371.79
  5. Step 5: Solve for x
    x = 91,058,586,371.79/453,654.40
  6. Step 6: Final answer
    x = 200,722.37

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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.