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Finding the Fourth Proportional to 139,754.44, 209,629.18 and 34,573.40

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Solution

The fourth proportional to 139,754.44, 209,629.18 and 34,573.40 is: 51,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,754.44 : 209,629.18 = 34,573.40 : x
  2. Step 2: Convert to fraction form
    139,754.44/209,629.18 = 34,573.40/x
  3. Step 3: Cross multiply
    139,754.44x = 209,629.18 × 34,573.40
  4. Step 4: Simplify right side
    139,754.44x = 7,247,593,491.81
  5. Step 5: Solve for x
    x = 7,247,593,491.81/139,754.44
  6. Step 6: Final answer
    x = 51,859.49

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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.