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Finding the Fourth Proportional to 222,494.60, 333,778.30 and 72,691.40

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Solution

The fourth proportional to 222,494.60, 333,778.30 and 72,691.40 is: 109,048.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,494.60 : 333,778.30 = 72,691.40 : x
  2. Step 2: Convert to fraction form
    222,494.60/333,778.30 = 72,691.40/x
  3. Step 3: Cross multiply
    222,494.60x = 333,778.30 × 72,691.40
  4. Step 4: Simplify right side
    222,494.60x = 24,262,811,916.62
  5. Step 5: Solve for x
    x = 24,262,811,916.62/222,494.60
  6. Step 6: Final answer
    x = 109,048.99

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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.