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Finding the Fourth Proportional to 64,670.14, 89,243.88 and 36,375.82

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Solution

The fourth proportional to 64,670.14, 89,243.88 and 36,375.82 is: 50,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,670.14 : 89,243.88 = 36,375.82 : x
  2. Step 2: Convert to fraction form
    64,670.14/89,243.88 = 36,375.82/x
  3. Step 3: Cross multiply
    64,670.14x = 89,243.88 × 36,375.82
  4. Step 4: Simplify right side
    64,670.14x = 3,246,319,314.98
  5. Step 5: Solve for x
    x = 3,246,319,314.98/64,670.14
  6. Step 6: Final answer
    x = 50,198.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.