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Finding the Fourth Proportional to 79,931.77, 110,305.22 and 44,121.77

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Solution

The fourth proportional to 79,931.77, 110,305.22 and 44,121.77 is: 60,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931.77 : 110,305.22 = 44,121.77 : x
  2. Step 2: Convert to fraction form
    79,931.77/110,305.22 = 44,121.77/x
  3. Step 3: Cross multiply
    79,931.77x = 110,305.22 × 44,121.77
  4. Step 4: Simplify right side
    79,931.77x = 4,866,861,546.64
  5. Step 5: Solve for x
    x = 4,866,861,546.64/79,931.77
  6. Step 6: Final answer
    x = 60,887.70

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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.