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Finding the Fourth Proportional to 139,536.70, 209,242.41 and 44,749.42

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Solution

The fourth proportional to 139,536.70, 209,242.41 and 44,749.42 is: 67,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,536.70 : 209,242.41 = 44,749.42 : x
  2. Step 2: Convert to fraction form
    139,536.70/209,242.41 = 44,749.42/x
  3. Step 3: Cross multiply
    139,536.70x = 209,242.41 × 44,749.42
  4. Step 4: Simplify right side
    139,536.70x = 9,363,476,486.90
  5. Step 5: Solve for x
    x = 9,363,476,486.90/139,536.70
  6. Step 6: Final answer
    x = 67,104.04

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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.