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Finding the Fourth Proportional to 111,212.70, 166,818.51 and 37,340.70

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Solution

The fourth proportional to 111,212.70, 166,818.51 and 37,340.70 is: 56,010.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,212.70 : 166,818.51 = 37,340.70 : x
  2. Step 2: Convert to fraction form
    111,212.70/166,818.51 = 37,340.70/x
  3. Step 3: Cross multiply
    111,212.70x = 166,818.51 × 37,340.70
  4. Step 4: Simplify right side
    111,212.70x = 6,229,119,936.36
  5. Step 5: Solve for x
    x = 6,229,119,936.36/111,212.70
  6. Step 6: Final answer
    x = 56,010.87

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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.