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Finding the Fourth Proportional to 103,755.86, 143,183.67 and 59,043.86

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Solution

The fourth proportional to 103,755.86, 143,183.67 and 59,043.86 is: 81,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,755.86 : 143,183.67 = 59,043.86 : x
  2. Step 2: Convert to fraction form
    103,755.86/143,183.67 = 59,043.86/x
  3. Step 3: Cross multiply
    103,755.86x = 143,183.67 × 59,043.86
  4. Step 4: Simplify right side
    103,755.86x = 8,454,116,565.77
  5. Step 5: Solve for x
    x = 8,454,116,565.77/103,755.86
  6. Step 6: Final answer
    x = 81,480.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.