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Finding the Fourth Proportional to 80,216.30, 110,699.81 and 43,917.14

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Solution

The fourth proportional to 80,216.30, 110,699.81 and 43,917.14 is: 60,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,216.30 : 110,699.81 = 43,917.14 : x
  2. Step 2: Convert to fraction form
    80,216.30/110,699.81 = 43,917.14/x
  3. Step 3: Cross multiply
    80,216.30x = 110,699.81 × 43,917.14
  4. Step 4: Simplify right side
    80,216.30x = 4,861,618,280.66
  5. Step 5: Solve for x
    x = 4,861,618,280.66/80,216.30
  6. Step 6: Final answer
    x = 60,606.36

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1.5x scale

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.