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Finding the Fourth Proportional to 139,261.82, 208,926.66 and 44,491.88

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Solution

The fourth proportional to 139,261.82, 208,926.66 and 44,491.88 is: 66,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,261.82 : 208,926.66 = 44,491.88 : x
  2. Step 2: Convert to fraction form
    139,261.82/208,926.66 = 44,491.88/x
  3. Step 3: Cross multiply
    139,261.82x = 208,926.66 × 44,491.88
  4. Step 4: Simplify right side
    139,261.82x = 9,295,539,885.52
  5. Step 5: Solve for x
    x = 9,295,539,885.52/139,261.82
  6. Step 6: Final answer
    x = 66,748.66

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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.