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Finding the Fourth Proportional to 61,665.68, 92,234.86 and 51,472.03

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Solution

The fourth proportional to 61,665.68, 92,234.86 and 51,472.03 is: 76,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,665.68 : 92,234.86 = 51,472.03 : x
  2. Step 2: Convert to fraction form
    61,665.68/92,234.86 = 51,472.03/x
  3. Step 3: Cross multiply
    61,665.68x = 92,234.86 × 51,472.03
  4. Step 4: Simplify right side
    61,665.68x = 4,747,515,480.97
  5. Step 5: Solve for x
    x = 4,747,515,480.97/61,665.68
  6. Step 6: Final answer
    x = 76,987.97

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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.