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Finding the Fourth Proportional to 210,546.89, 315,786.44 and 58,747.89

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Solution

The fourth proportional to 210,546.89, 315,786.44 and 58,747.89 is: 88,112.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,546.89 : 315,786.44 = 58,747.89 : x
  2. Step 2: Convert to fraction form
    210,546.89/315,786.44 = 58,747.89/x
  3. Step 3: Cross multiply
    210,546.89x = 315,786.44 × 58,747.89
  4. Step 4: Simplify right side
    210,546.89x = 18,551,786,746.87
  5. Step 5: Solve for x
    x = 18,551,786,746.87/210,546.89
  6. Step 6: Final answer
    x = 88,112.38

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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.