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Finding the Fourth Proportional to 75,604.65, 104,327.64 and 43,775.70

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Solution

The fourth proportional to 75,604.65, 104,327.64 and 43,775.70 is: 60,406.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,604.65 : 104,327.64 = 43,775.70 : x
  2. Step 2: Convert to fraction form
    75,604.65/104,327.64 = 43,775.70/x
  3. Step 3: Cross multiply
    75,604.65x = 104,327.64 × 43,775.70
  4. Step 4: Simplify right side
    75,604.65x = 4,567,015,470.35
  5. Step 5: Solve for x
    x = 4,567,015,470.35/75,604.65
  6. Step 6: Final answer
    x = 60,406.54

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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.