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Finding the Fourth Proportional to 80,065.36, 120,104.28 and 46,788.88

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Solution

The fourth proportional to 80,065.36, 120,104.28 and 46,788.88 is: 70,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,065.36 : 120,104.28 = 46,788.88 : x
  2. Step 2: Convert to fraction form
    80,065.36/120,104.28 = 46,788.88/x
  3. Step 3: Cross multiply
    80,065.36x = 120,104.28 × 46,788.88
  4. Step 4: Simplify right side
    80,065.36x = 5,619,544,744.41
  5. Step 5: Solve for x
    x = 5,619,544,744.41/80,065.36
  6. Step 6: Final answer
    x = 70,186.97

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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.