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Finding the Fourth Proportional to 75,304.01, 103,989.83 and 48,493.22

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Solution

The fourth proportional to 75,304.01, 103,989.83 and 48,493.22 is: 66,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,304.01 : 103,989.83 = 48,493.22 : x
  2. Step 2: Convert to fraction form
    75,304.01/103,989.83 = 48,493.22/x
  3. Step 3: Cross multiply
    75,304.01x = 103,989.83 × 48,493.22
  4. Step 4: Simplify right side
    75,304.01x = 5,042,800,941.54
  5. Step 5: Solve for x
    x = 5,042,800,941.54/75,304.01
  6. Step 6: Final answer
    x = 66,965.90

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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.