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Finding the Fourth Proportional to 75,808.54, 113,620.57 and 53,628.31

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Solution

The fourth proportional to 75,808.54, 113,620.57 and 53,628.31 is: 80,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,808.54 : 113,620.57 = 53,628.31 : x
  2. Step 2: Convert to fraction form
    75,808.54/113,620.57 = 53,628.31/x
  3. Step 3: Cross multiply
    75,808.54x = 113,620.57 × 53,628.31
  4. Step 4: Simplify right side
    75,808.54x = 6,093,279,459.95
  5. Step 5: Solve for x
    x = 6,093,279,459.95/75,808.54
  6. Step 6: Final answer
    x = 80,377.22

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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.