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Finding the Fourth Proportional to 139,608.83, 209,371.65 and 50,841.58

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Solution

The fourth proportional to 139,608.83, 209,371.65 and 50,841.58 is: 76,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,608.83 : 209,371.65 = 50,841.58 : x
  2. Step 2: Convert to fraction form
    139,608.83/209,371.65 = 50,841.58/x
  3. Step 3: Cross multiply
    139,608.83x = 209,371.65 × 50,841.58
  4. Step 4: Simplify right side
    139,608.83x = 10,644,785,390.40
  5. Step 5: Solve for x
    x = 10,644,785,390.40/139,608.83
  6. Step 6: Final answer
    x = 76,247.22

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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.