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Finding the Fourth Proportional to 76,847.67, 115,265.00 and 43,462.71

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Solution

The fourth proportional to 76,847.67, 115,265.00 and 43,462.71 is: 65,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,847.67 : 115,265.00 = 43,462.71 : x
  2. Step 2: Convert to fraction form
    76,847.67/115,265.00 = 43,462.71/x
  3. Step 3: Cross multiply
    76,847.67x = 115,265.00 × 43,462.71
  4. Step 4: Simplify right side
    76,847.67x = 5,009,729,050.84
  5. Step 5: Solve for x
    x = 5,009,729,050.84/76,847.67
  6. Step 6: Final answer
    x = 65,190.38

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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.