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Finding the Fourth Proportional to 139,301.17, 208,887.96 and 44,512.94

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Solution

The fourth proportional to 139,301.17, 208,887.96 and 44,512.94 is: 66,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,301.17 : 208,887.96 = 44,512.94 : x
  2. Step 2: Convert to fraction form
    139,301.17/208,887.96 = 44,512.94/x
  3. Step 3: Cross multiply
    139,301.17x = 208,887.96 × 44,512.94
  4. Step 4: Simplify right side
    139,301.17x = 9,298,217,919.35
  5. Step 5: Solve for x
    x = 9,298,217,919.35/139,301.17
  6. Step 6: Final answer
    x = 66,749.03

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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.