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Finding the Fourth Proportional to 73,157.54, 100,957.89 and 39,623.54

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Solution

The fourth proportional to 73,157.54, 100,957.89 and 39,623.54 is: 54,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.54 : 100,957.89 = 39,623.54 : x
  2. Step 2: Convert to fraction form
    73,157.54/100,957.89 = 39,623.54/x
  3. Step 3: Cross multiply
    73,157.54x = 100,957.89 × 39,623.54
  4. Step 4: Simplify right side
    73,157.54x = 4,000,308,992.73
  5. Step 5: Solve for x
    x = 4,000,308,992.73/73,157.54
  6. Step 6: Final answer
    x = 54,680.75

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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.