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Finding the Fourth Proportional to 70,939.73, 106,440.94 and 37,197.69

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Solution

The fourth proportional to 70,939.73, 106,440.94 and 37,197.69 is: 55,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.73 : 106,440.94 = 37,197.69 : x
  2. Step 2: Convert to fraction form
    70,939.73/106,440.94 = 37,197.69/x
  3. Step 3: Cross multiply
    70,939.73x = 106,440.94 × 37,197.69
  4. Step 4: Simplify right side
    70,939.73x = 3,959,357,089.43
  5. Step 5: Solve for x
    x = 3,959,357,089.43/70,939.73
  6. Step 6: Final answer
    x = 55,812.97

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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.