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Finding the Fourth Proportional to 222,620, 333,949.44 and 56,408

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Solution

The fourth proportional to 222,620, 333,949.44 and 56,408 is: 84,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,620 : 333,949.44 = 56,408 : x
  2. Step 2: Convert to fraction form
    222,620/333,949.44 = 56,408/x
  3. Step 3: Cross multiply
    222,620x = 333,949.44 × 56,408
  4. Step 4: Simplify right side
    222,620x = 18,837,420,011.52
  5. Step 5: Solve for x
    x = 18,837,420,011.52/222,620
  6. Step 6: Final answer
    x = 84,616.93

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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.