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Finding the Fourth Proportional to 111,777.13, 167,713.08 and 52,611.49

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Solution

The fourth proportional to 111,777.13, 167,713.08 and 52,611.49 is: 78,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,777.13 : 167,713.08 = 52,611.49 : x
  2. Step 2: Convert to fraction form
    111,777.13/167,713.08 = 52,611.49/x
  3. Step 3: Cross multiply
    111,777.13x = 167,713.08 × 52,611.49
  4. Step 4: Simplify right side
    111,777.13x = 8,823,635,031.29
  5. Step 5: Solve for x
    x = 8,823,635,031.29/111,777.13
  6. Step 6: Final answer
    x = 78,939.54

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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.