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Finding the Fourth Proportional to 139,093.52, 208,587.90 and 50,325.08

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Solution

The fourth proportional to 139,093.52, 208,587.90 and 50,325.08 is: 75,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,093.52 : 208,587.90 = 50,325.08 : x
  2. Step 2: Convert to fraction form
    139,093.52/208,587.90 = 50,325.08/x
  3. Step 3: Cross multiply
    139,093.52x = 208,587.90 × 50,325.08
  4. Step 4: Simplify right side
    139,093.52x = 10,497,202,754.53
  5. Step 5: Solve for x
    x = 10,497,202,754.53/139,093.52
  6. Step 6: Final answer
    x = 75,468.67

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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.