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Finding the Fourth Proportional to 608,406.82, 912,540.49 and 159,171.05

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Solution

The fourth proportional to 608,406.82, 912,540.49 and 159,171.05 is: 238,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,406.82 : 912,540.49 = 159,171.05 : x
  2. Step 2: Convert to fraction form
    608,406.82/912,540.49 = 159,171.05/x
  3. Step 3: Cross multiply
    608,406.82x = 912,540.49 × 159,171.05
  4. Step 4: Simplify right side
    608,406.82x = 145,250,027,960.81
  5. Step 5: Solve for x
    x = 145,250,027,960.81/608,406.82
  6. Step 6: Final answer
    x = 238,738.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.