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Finding the Fourth Proportional to 189,348.82, 283,752.58 and 139,034.14

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Solution

The fourth proportional to 189,348.82, 283,752.58 and 139,034.14 is: 208,352.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,348.82 : 283,752.58 = 139,034.14 : x
  2. Step 2: Convert to fraction form
    189,348.82/283,752.58 = 139,034.14/x
  3. Step 3: Cross multiply
    189,348.82x = 283,752.58 × 139,034.14
  4. Step 4: Simplify right side
    189,348.82x = 39,451,295,933.08
  5. Step 5: Solve for x
    x = 39,451,295,933.08/189,348.82
  6. Step 6: Final answer
    x = 208,352.48

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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.