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Finding the Fourth Proportional to 222,121.98, 333,218.50 and 72,350.75

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Solution

The fourth proportional to 222,121.98, 333,218.50 and 72,350.75 is: 108,537.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,121.98 : 333,218.50 = 72,350.75 : x
  2. Step 2: Convert to fraction form
    222,121.98/333,218.50 = 72,350.75/x
  3. Step 3: Cross multiply
    222,121.98x = 333,218.50 × 72,350.75
  4. Step 4: Simplify right side
    222,121.98x = 24,108,606,722.78
  5. Step 5: Solve for x
    x = 24,108,606,722.78/222,121.98
  6. Step 6: Final answer
    x = 108,537.69

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1.5x scale

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.