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Finding the Fourth Proportional to 139,170.66, 208,767.60 and 44,414.52

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Solution

The fourth proportional to 139,170.66, 208,767.60 and 44,414.52 is: 66,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,170.66 : 208,767.60 = 44,414.52 : x
  2. Step 2: Convert to fraction form
    139,170.66/208,767.60 = 44,414.52/x
  3. Step 3: Cross multiply
    139,170.66x = 208,767.60 × 44,414.52
  4. Step 4: Simplify right side
    139,170.66x = 9,272,312,745.55
  5. Step 5: Solve for x
    x = 9,272,312,745.55/139,170.66
  6. Step 6: Final answer
    x = 66,625.49

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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.