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Finding the Fourth Proportional to 220,805.40, 331,226.10 and 94,446.60

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Solution

The fourth proportional to 220,805.40, 331,226.10 and 94,446.60 is: 141,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,805.40 : 331,226.10 = 94,446.60 : x
  2. Step 2: Convert to fraction form
    220,805.40/331,226.10 = 94,446.60/x
  3. Step 3: Cross multiply
    220,805.40x = 331,226.10 × 94,446.60
  4. Step 4: Simplify right side
    220,805.40x = 31,283,178,976.26
  5. Step 5: Solve for x
    x = 31,283,178,976.26/220,805.40
  6. Step 6: Final answer
    x = 141,677.60

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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.