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Finding the Fourth Proportional to 65,154.44, 89,908.16 and 36,861.96

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Solution

The fourth proportional to 65,154.44, 89,908.16 and 36,861.96 is: 50,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,154.44 : 89,908.16 = 36,861.96 : x
  2. Step 2: Convert to fraction form
    65,154.44/89,908.16 = 36,861.96/x
  3. Step 3: Cross multiply
    65,154.44x = 89,908.16 × 36,861.96
  4. Step 4: Simplify right side
    65,154.44x = 3,314,190,997.59
  5. Step 5: Solve for x
    x = 3,314,190,997.59/65,154.44
  6. Step 6: Final answer
    x = 50,866.69

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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.