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Finding the Fourth Proportional to 297,358.82, 410,355.55 and 161,392.72

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Solution

The fourth proportional to 297,358.82, 410,355.55 and 161,392.72 is: 222,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,358.82 : 410,355.55 = 161,392.72 : x
  2. Step 2: Convert to fraction form
    297,358.82/410,355.55 = 161,392.72/x
  3. Step 3: Cross multiply
    297,358.82x = 410,355.55 × 161,392.72
  4. Step 4: Simplify right side
    297,358.82x = 66,228,398,381.60
  5. Step 5: Solve for x
    x = 66,228,398,381.60/297,358.82
  6. Step 6: Final answer
    x = 222,722.16

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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.