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Finding the Fourth Proportional to 115,807.38, 173,747.97 and 51,755.61

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Solution

The fourth proportional to 115,807.38, 173,747.97 and 51,755.61 is: 77,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,807.38 : 173,747.97 = 51,755.61 : x
  2. Step 2: Convert to fraction form
    115,807.38/173,747.97 = 51,755.61/x
  3. Step 3: Cross multiply
    115,807.38x = 173,747.97 × 51,755.61
  4. Step 4: Simplify right side
    115,807.38x = 8,992,432,173.61
  5. Step 5: Solve for x
    x = 8,992,432,173.61/115,807.38
  6. Step 6: Final answer
    x = 77,649.91

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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.