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Finding the Fourth Proportional to 71,946.54, 107,950.96 and 38,627.72

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Solution

The fourth proportional to 71,946.54, 107,950.96 and 38,627.72 is: 57,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,946.54 : 107,950.96 = 38,627.72 : x
  2. Step 2: Convert to fraction form
    71,946.54/107,950.96 = 38,627.72/x
  3. Step 3: Cross multiply
    71,946.54x = 107,950.96 × 38,627.72
  4. Step 4: Simplify right side
    71,946.54x = 4,169,899,456.61
  5. Step 5: Solve for x
    x = 4,169,899,456.61/71,946.54
  6. Step 6: Final answer
    x = 57,958.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.