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Finding the Fourth Proportional to 189,367.92, 261,327.06 and 104,484.54

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Solution

The fourth proportional to 189,367.92, 261,327.06 and 104,484.54 is: 144,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,367.92 : 261,327.06 = 104,484.54 : x
  2. Step 2: Convert to fraction form
    189,367.92/261,327.06 = 104,484.54/x
  3. Step 3: Cross multiply
    189,367.92x = 261,327.06 × 104,484.54
  4. Step 4: Simplify right side
    189,367.92x = 27,304,637,653.65
  5. Step 5: Solve for x
    x = 27,304,637,653.65/189,367.92
  6. Step 6: Final answer
    x = 144,188.30

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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.