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Finding the Fourth Proportional to 71,753.91, 99,009.21 and 41,533.32

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Solution

The fourth proportional to 71,753.91, 99,009.21 and 41,533.32 is: 57,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,753.91 : 99,009.21 = 41,533.32 : x
  2. Step 2: Convert to fraction form
    71,753.91/99,009.21 = 41,533.32/x
  3. Step 3: Cross multiply
    71,753.91x = 99,009.21 × 41,533.32
  4. Step 4: Simplify right side
    71,753.91x = 4,112,181,201.88
  5. Step 5: Solve for x
    x = 4,112,181,201.88/71,753.91
  6. Step 6: Final answer
    x = 57,309.51

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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.