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Finding the Fourth Proportional to 139,151.58, 208,743.78 and 44,348.79

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Solution

The fourth proportional to 139,151.58, 208,743.78 and 44,348.79 is: 66,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,151.58 : 208,743.78 = 44,348.79 : x
  2. Step 2: Convert to fraction form
    139,151.58/208,743.78 = 44,348.79/x
  3. Step 3: Cross multiply
    139,151.58x = 208,743.78 × 44,348.79
  4. Step 4: Simplify right side
    139,151.58x = 9,257,534,063.03
  5. Step 5: Solve for x
    x = 9,257,534,063.03/139,151.58
  6. Step 6: Final answer
    x = 66,528.42

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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.