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Finding the Fourth Proportional to 79,745.22, 110,052.12 and 47,472.53

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Solution

The fourth proportional to 79,745.22, 110,052.12 and 47,472.53 is: 65,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,745.22 : 110,052.12 = 47,472.53 : x
  2. Step 2: Convert to fraction form
    79,745.22/110,052.12 = 47,472.53/x
  3. Step 3: Cross multiply
    79,745.22x = 110,052.12 × 47,472.53
  4. Step 4: Simplify right side
    79,745.22x = 5,224,452,548.04
  5. Step 5: Solve for x
    x = 5,224,452,548.04/79,745.22
  6. Step 6: Final answer
    x = 65,514.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.