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Finding the Fourth Proportional to 222,456.60, 333,721.26 and 72,653.40

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Solution

The fourth proportional to 222,456.60, 333,721.26 and 72,653.40 is: 108,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,456.60 : 333,721.26 = 72,653.40 : x
  2. Step 2: Convert to fraction form
    222,456.60/333,721.26 = 72,653.40/x
  3. Step 3: Cross multiply
    222,456.60x = 333,721.26 × 72,653.40
  4. Step 4: Simplify right side
    222,456.60x = 24,245,984,191.28
  5. Step 5: Solve for x
    x = 24,245,984,191.28/222,456.60
  6. Step 6: Final answer
    x = 108,991.98

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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.