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Finding the Fourth Proportional to 111,992.48, 167,939.20 and 59,389.92

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Solution

The fourth proportional to 111,992.48, 167,939.20 and 59,389.92 is: 89,058.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,992.48 : 167,939.20 = 59,389.92 : x
  2. Step 2: Convert to fraction form
    111,992.48/167,939.20 = 59,389.92/x
  3. Step 3: Cross multiply
    111,992.48x = 167,939.20 × 59,389.92
  4. Step 4: Simplify right side
    111,992.48x = 9,973,895,652.86
  5. Step 5: Solve for x
    x = 9,973,895,652.86/111,992.48
  6. Step 6: Final answer
    x = 89,058.62

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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.