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Finding the Fourth Proportional to 79,452.94, 109,664.16 and 45,481.12

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Solution

The fourth proportional to 79,452.94, 109,664.16 and 45,481.12 is: 62,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,452.94 : 109,664.16 = 45,481.12 : x
  2. Step 2: Convert to fraction form
    79,452.94/109,664.16 = 45,481.12/x
  3. Step 3: Cross multiply
    79,452.94x = 109,664.16 × 45,481.12
  4. Step 4: Simplify right side
    79,452.94x = 4,987,648,820.66
  5. Step 5: Solve for x
    x = 4,987,648,820.66/79,452.94
  6. Step 6: Final answer
    x = 62,774.88

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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.