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Finding the Fourth Proportional to 71,973.77, 99,343.56 and 41,768.81

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Solution

The fourth proportional to 71,973.77, 99,343.56 and 41,768.81 is: 57,652.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.77 : 99,343.56 = 41,768.81 : x
  2. Step 2: Convert to fraction form
    71,973.77/99,343.56 = 41,768.81/x
  3. Step 3: Cross multiply
    71,973.77x = 99,343.56 × 41,768.81
  4. Step 4: Simplify right side
    71,973.77x = 4,149,462,873.62
  5. Step 5: Solve for x
    x = 4,149,462,873.62/71,973.77
  6. Step 6: Final answer
    x = 57,652.44

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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.