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Finding the Fourth Proportional to 458,279.56, 687,495.48 and 192,060.10

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Solution

The fourth proportional to 458,279.56, 687,495.48 and 192,060.10 is: 288,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,279.56 : 687,495.48 = 192,060.10 : x
  2. Step 2: Convert to fraction form
    458,279.56/687,495.48 = 192,060.10/x
  3. Step 3: Cross multiply
    458,279.56x = 687,495.48 × 192,060.10
  4. Step 4: Simplify right side
    458,279.56x = 132,040,450,638.35
  5. Step 5: Solve for x
    x = 132,040,450,638.35/458,279.56
  6. Step 6: Final answer
    x = 288,122.06

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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.