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Finding the Fourth Proportional to 101,168.76, 139,591.23 and 58,704.51

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Solution

The fourth proportional to 101,168.76, 139,591.23 and 58,704.51 is: 80,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,168.76 : 139,591.23 = 58,704.51 : x
  2. Step 2: Convert to fraction form
    101,168.76/139,591.23 = 58,704.51/x
  3. Step 3: Cross multiply
    101,168.76x = 139,591.23 × 58,704.51
  4. Step 4: Simplify right side
    101,168.76x = 8,194,634,757.45
  5. Step 5: Solve for x
    x = 8,194,634,757.45/101,168.76
  6. Step 6: Final answer
    x = 80,999.66

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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.