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Finding the Fourth Proportional to 77,216.59, 115,745.58 and 43,865.44

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Solution

The fourth proportional to 77,216.59, 115,745.58 and 43,865.44 is: 65,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,216.59 : 115,745.58 = 43,865.44 : x
  2. Step 2: Convert to fraction form
    77,216.59/115,745.58 = 43,865.44/x
  3. Step 3: Cross multiply
    77,216.59x = 115,745.58 × 43,865.44
  4. Step 4: Simplify right side
    77,216.59x = 5,077,230,794.76
  5. Step 5: Solve for x
    x = 5,077,230,794.76/77,216.59
  6. Step 6: Final answer
    x = 65,753.11

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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.