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Finding the Fourth Proportional to 72,452.44, 108,578.31 and 52,301.26

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Solution

The fourth proportional to 72,452.44, 108,578.31 and 52,301.26 is: 78,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,452.44 : 108,578.31 = 52,301.26 : x
  2. Step 2: Convert to fraction form
    72,452.44/108,578.31 = 52,301.26/x
  3. Step 3: Cross multiply
    72,452.44x = 108,578.31 × 52,301.26
  4. Step 4: Simplify right side
    72,452.44x = 5,678,782,421.67
  5. Step 5: Solve for x
    x = 5,678,782,421.67/72,452.44
  6. Step 6: Final answer
    x = 78,379.45

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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.