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Finding the Fourth Proportional to 73,179.55, 100,989.75 and 41,347.72

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Solution

The fourth proportional to 73,179.55, 100,989.75 and 41,347.72 is: 57,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,179.55 : 100,989.75 = 41,347.72 : x
  2. Step 2: Convert to fraction form
    73,179.55/100,989.75 = 41,347.72/x
  3. Step 3: Cross multiply
    73,179.55x = 100,989.75 × 41,347.72
  4. Step 4: Simplify right side
    73,179.55x = 4,175,695,905.87
  5. Step 5: Solve for x
    x = 4,175,695,905.87/73,179.55
  6. Step 6: Final answer
    x = 57,060.97

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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.