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Finding the Fourth Proportional to 61,750.96, 92,660.78 and 30,161.48

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Solution

The fourth proportional to 61,750.96, 92,660.78 and 30,161.48 is: 45,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,750.96 : 92,660.78 = 30,161.48 : x
  2. Step 2: Convert to fraction form
    61,750.96/92,660.78 = 30,161.48/x
  3. Step 3: Cross multiply
    61,750.96x = 92,660.78 × 30,161.48
  4. Step 4: Simplify right side
    61,750.96x = 2,794,786,262.75
  5. Step 5: Solve for x
    x = 2,794,786,262.75/61,750.96
  6. Step 6: Final answer
    x = 45,258.99

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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.