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Finding the Fourth Proportional to 111,309.41, 167,018.93 and 52,134.86

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Solution

The fourth proportional to 111,309.41, 167,018.93 and 52,134.86 is: 78,227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,309.41 : 167,018.93 = 52,134.86 : x
  2. Step 2: Convert to fraction form
    111,309.41/167,018.93 = 52,134.86/x
  3. Step 3: Cross multiply
    111,309.41x = 167,018.93 × 52,134.86
  4. Step 4: Simplify right side
    111,309.41x = 8,707,508,532.90
  5. Step 5: Solve for x
    x = 8,707,508,532.90/111,309.41
  6. Step 6: Final answer
    x = 78,227.96

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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.