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Finding the Fourth Proportional to 76,858.88, 106,065.25 and 43,324.88

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Solution

The fourth proportional to 76,858.88, 106,065.25 and 43,324.88 is: 59,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,858.88 : 106,065.25 = 43,324.88 : x
  2. Step 2: Convert to fraction form
    76,858.88/106,065.25 = 43,324.88/x
  3. Step 3: Cross multiply
    76,858.88x = 106,065.25 × 43,324.88
  4. Step 4: Simplify right side
    76,858.88x = 4,595,263,589.78
  5. Step 5: Solve for x
    x = 4,595,263,589.78/76,858.88
  6. Step 6: Final answer
    x = 59,788.33

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1.5x scale

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.