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Finding the Fourth Proportional to 139,262.84, 208,874.22 and 44,503.82

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Solution

The fourth proportional to 139,262.84, 208,874.22 and 44,503.82 is: 66,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,262.84 : 208,874.22 = 44,503.82 : x
  2. Step 2: Convert to fraction form
    139,262.84/208,874.22 = 44,503.82/x
  3. Step 3: Cross multiply
    139,262.84x = 208,874.22 × 44,503.82
  4. Step 4: Simplify right side
    139,262.84x = 9,295,700,689.52
  5. Step 5: Solve for x
    x = 9,295,700,689.52/139,262.84
  6. Step 6: Final answer
    x = 66,749.33

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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.