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Finding the Fourth Proportional to 139,532.56, 209,297.04 and 34,352.44

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Solution

The fourth proportional to 139,532.56, 209,297.04 and 34,352.44 is: 51,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,532.56 : 209,297.04 = 34,352.44 : x
  2. Step 2: Convert to fraction form
    139,532.56/209,297.04 = 34,352.44/x
  3. Step 3: Cross multiply
    139,532.56x = 209,297.04 × 34,352.44
  4. Step 4: Simplify right side
    139,532.56x = 7,189,864,008.78
  5. Step 5: Solve for x
    x = 7,189,864,008.78/139,532.56
  6. Step 6: Final answer
    x = 51,528.22

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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.