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Finding the Fourth Proportional to 189,744.81, 261,832.14 and 104,861.67

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Solution

The fourth proportional to 189,744.81, 261,832.14 and 104,861.67 is: 144,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,744.81 : 261,832.14 = 104,861.67 : x
  2. Step 2: Convert to fraction form
    189,744.81/261,832.14 = 104,861.67/x
  3. Step 3: Cross multiply
    189,744.81x = 261,832.14 × 104,861.67
  4. Step 4: Simplify right side
    189,744.81x = 27,456,155,460.07
  5. Step 5: Solve for x
    x = 27,456,155,460.07/189,744.81
  6. Step 6: Final answer
    x = 144,700.43

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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.