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Finding the Fourth Proportional to 189,464.82, 261,463.59 and 104,581.86

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Solution

The fourth proportional to 189,464.82, 261,463.59 and 104,581.86 is: 144,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,464.82 : 261,463.59 = 104,581.86 : x
  2. Step 2: Convert to fraction form
    189,464.82/261,463.59 = 104,581.86/x
  3. Step 3: Cross multiply
    189,464.82x = 261,463.59 × 104,581.86
  4. Step 4: Simplify right side
    189,464.82x = 27,344,348,564.48
  5. Step 5: Solve for x
    x = 27,344,348,564.48/189,464.82
  6. Step 6: Final answer
    x = 144,324.15

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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.