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Finding the Fourth Proportional to 123,393.44, 185,164.20 and 53,272.67

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Solution

The fourth proportional to 123,393.44, 185,164.20 and 53,272.67 is: 79,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,393.44 : 185,164.20 = 53,272.67 : x
  2. Step 2: Convert to fraction form
    123,393.44/185,164.20 = 53,272.67/x
  3. Step 3: Cross multiply
    123,393.44x = 185,164.20 × 53,272.67
  4. Step 4: Simplify right side
    123,393.44x = 9,864,191,322.41
  5. Step 5: Solve for x
    x = 9,864,191,322.41/123,393.44
  6. Step 6: Final answer
    x = 79,940.97

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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.