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Finding the Fourth Proportional to 422,305.50, 633,487.81 and 169,585.98

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Solution

The fourth proportional to 422,305.50, 633,487.81 and 169,585.98 is: 254,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,305.50 : 633,487.81 = 169,585.98 : x
  2. Step 2: Convert to fraction form
    422,305.50/633,487.81 = 169,585.98/x
  3. Step 3: Cross multiply
    422,305.50x = 633,487.81 × 169,585.98
  4. Step 4: Simplify right side
    422,305.50x = 107,430,650,853.98
  5. Step 5: Solve for x
    x = 107,430,650,853.98/422,305.50
  6. Step 6: Final answer
    x = 254,390.84

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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.