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Finding the Fourth Proportional to 111,139.28, 166,726.20 and 37,250

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Solution

The fourth proportional to 111,139.28, 166,726.20 and 37,250 is: 55,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,139.28 : 166,726.20 = 37,250 : x
  2. Step 2: Convert to fraction form
    111,139.28/166,726.20 = 37,250/x
  3. Step 3: Cross multiply
    111,139.28x = 166,726.20 × 37,250
  4. Step 4: Simplify right side
    111,139.28x = 6,210,550,950
  5. Step 5: Solve for x
    x = 6,210,550,950/111,139.28
  6. Step 6: Final answer
    x = 55,880.79

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