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Finding the Fourth Proportional to 222,461.10, 333,728.01 and 72,657.90

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Solution

The fourth proportional to 222,461.10, 333,728.01 and 72,657.90 is: 108,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,461.10 : 333,728.01 = 72,657.90 : x
  2. Step 2: Convert to fraction form
    222,461.10/333,728.01 = 72,657.90/x
  3. Step 3: Cross multiply
    222,461.10x = 333,728.01 × 72,657.90
  4. Step 4: Simplify right side
    222,461.10x = 24,247,976,377.78
  5. Step 5: Solve for x
    x = 24,247,976,377.78/222,461.10
  6. Step 6: Final answer
    x = 108,998.73

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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.