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Finding the Fourth Proportional to 79,610.88, 109,863.94 and 45,618.68

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Solution

The fourth proportional to 79,610.88, 109,863.94 and 45,618.68 is: 62,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,610.88 : 109,863.94 = 45,618.68 : x
  2. Step 2: Convert to fraction form
    79,610.88/109,863.94 = 45,618.68/x
  3. Step 3: Cross multiply
    79,610.88x = 109,863.94 × 45,618.68
  4. Step 4: Simplify right side
    79,610.88x = 5,011,847,922.40
  5. Step 5: Solve for x
    x = 5,011,847,922.40/79,610.88
  6. Step 6: Final answer
    x = 62,954.31

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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.