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Finding the Fourth Proportional to 111,601.86, 167,260.43 and 52,306.89

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Solution

The fourth proportional to 111,601.86, 167,260.43 and 52,306.89 is: 78,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,601.86 : 167,260.43 = 52,306.89 : x
  2. Step 2: Convert to fraction form
    111,601.86/167,260.43 = 52,306.89/x
  3. Step 3: Cross multiply
    111,601.86x = 167,260.43 × 52,306.89
  4. Step 4: Simplify right side
    111,601.86x = 8,748,873,044.13
  5. Step 5: Solve for x
    x = 8,748,873,044.13/111,601.86
  6. Step 6: Final answer
    x = 78,393.61

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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.